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		<title>Examen Sustitutorio de Matematica Basica &#8211; Ciclo 2005 &#8211; II (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/12/examen-sustitutorio-de-matematica-basica-ciclo-2005-ii-unmsm-fcm/</link>
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		<pubDate>Thu, 12 Jun 2008 20:14:38 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[matematica basica]]></category>
		<category><![CDATA[adjunta]]></category>
		<category><![CDATA[basica]]></category>
		<category><![CDATA[complejos]]></category>
		<category><![CDATA[forma polar]]></category>
		<category><![CDATA[inversa]]></category>
		<category><![CDATA[matriz]]></category>
		<category><![CDATA[primos]]></category>
		<category><![CDATA[traspuesta]]></category>

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		<description><![CDATA[1.- Si Hallar Hallar: 2.- Demostrar que, si es primo 3.- Si , demostrar que . 4.- Sea , demostrar que . 5.- Sea y expresar en forma binomial y trigonometrica el numero complejo .<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=19&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>1.-</strong> Si <img src='http://s0.wp.com/latex.php?latex=Adj%28A%29+%3D%5Cleft%28+%5Cbegin%7Barray%7D%7Bccc%7D+0+%26+2+%26+-1+%5C%5C+4+%26+-3+%26+0+%5C%5C+-2+%26+0+%26+1+%5Cend%7Barray%7D+%5Cright%29+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='Adj(A) =&#92;left( &#92;begin{array}{ccc} 0 &amp; 2 &amp; -1 &#92;&#92; 4 &amp; -3 &amp; 0 &#92;&#92; -2 &amp; 0 &amp; 1 &#92;end{array} &#92;right) ' title='Adj(A) =&#92;left( &#92;begin{array}{ccc} 0 &amp; 2 &amp; -1 &#92;&#92; 4 &amp; -3 &amp; 0 &#92;&#92; -2 &amp; 0 &amp; 1 &#92;end{array} &#92;right) ' class='latex' /></p>
<ul>
<li> Hallar <img src='http://s0.wp.com/latex.php?latex=A&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A' title='A' class='latex' /></li>
<li> Hallar:<img src='http://s0.wp.com/latex.php?latex=A%5E%7B-1%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A^{-1}' title='A^{-1}' class='latex' /></li>
</ul>
<p><strong>2.-</strong> Demostrar que, si <img src='http://s0.wp.com/latex.php?latex=p+%5Cin+%5Cmathbb%7BZ%7D%5E%7B%2B%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='p &#92;in &#92;mathbb{Z}^{+}' title='p &#92;in &#92;mathbb{Z}^{+}' class='latex' /> <img src='http://s0.wp.com/latex.php?latex=p&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='p' title='p' class='latex' /> es primo <img src='http://s0.wp.com/latex.php?latex=%5Ciff+%5Clbrack+p%7Cab+%2Ca%2C+b+%5Cin+%5Cmathbb%7BZ%7D+%5CRightarrow+%28+p%7Ca+%5Cvee+p%7Cb+%29+%5Crbrack+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;iff &#92;lbrack p|ab ,a, b &#92;in &#92;mathbb{Z} &#92;Rightarrow ( p|a &#92;vee p|b ) &#92;rbrack ' title='&#92;iff &#92;lbrack p|ab ,a, b &#92;in &#92;mathbb{Z} &#92;Rightarrow ( p|a &#92;vee p|b ) &#92;rbrack ' class='latex' /></p>
<p><strong>3.-</strong> Si <img src='http://s0.wp.com/latex.php?latex=z+-+%5Cfrac%7B1%7D%7Bz%7D+%3D+2isen%28+%5Ctheta+%29++&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='z - &#92;frac{1}{z} = 2isen( &#92;theta )  ' title='z - &#92;frac{1}{z} = 2isen( &#92;theta )  ' class='latex' />, demostrar que</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=z%5E%7Bn%7D+-+%5Cfrac%7B1%7D%7Bz%5E%7Bn%7D%7D+%3D+2+i+sen%28n+%5Ctheta%29%2C+%5Cforall+n+%5Cin+%5Cmathbb%7BZ%5E%7B%2B%7D%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='z^{n} - &#92;frac{1}{z^{n}} = 2 i sen(n &#92;theta), &#92;forall n &#92;in &#92;mathbb{Z^{+}} ' title='z^{n} - &#92;frac{1}{z^{n}} = 2 i sen(n &#92;theta), &#92;forall n &#92;in &#92;mathbb{Z^{+}} ' class='latex' />.</p>
<p style="text-align:center;">
<p><strong>4.-</strong> Sea <img src='http://s0.wp.com/latex.php?latex=A%2C+B+%5Cin+%5Cmathbb%7BR%7D%5E%7Bn+%5Ctimes+n%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A, B &#92;in &#92;mathbb{R}^{n &#92;times n} ' title='A, B &#92;in &#92;mathbb{R}^{n &#92;times n} ' class='latex' />, demostrar que <img src='http://s0.wp.com/latex.php?latex=%28AB%29%5E%7Bt%7D+%3D+B%5E%7Bt%7DA%5E%7Bt%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(AB)^{t} = B^{t}A^{t}' title='(AB)^{t} = B^{t}A^{t}' class='latex' />.</p>
<p><strong>5.-</strong> Sea <img src='http://s0.wp.com/latex.php?latex=A+%3D+%5Cleft%28+-+%5Cfrac%7B1%7D%7B2%7D+-+%5Cfrac%7B+%5Csqrt%7B3%7D%7D%7B2%7Di+%5Cright%29%5E%7B-50%7D++&#038;bg=ffffff&#038;fg=000000&#038;s=1' alt='A = &#92;left( - &#92;frac{1}{2} - &#92;frac{ &#92;sqrt{3}}{2}i &#92;right)^{-50}  ' title='A = &#92;left( - &#92;frac{1}{2} - &#92;frac{ &#92;sqrt{3}}{2}i &#92;right)^{-50}  ' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=B%3D+%5Cleft%28+-+%5Cfrac%7B1%7D%7B2%7D+%2B+%5Cfrac%7B+%5Csqrt%7B3%7D%7D%7B2%7Di+%5Cright%29%5E%7B5%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=1' alt='B= &#92;left( - &#92;frac{1}{2} + &#92;frac{ &#92;sqrt{3}}{2}i &#92;right)^{5} ' title='B= &#92;left( - &#92;frac{1}{2} + &#92;frac{ &#92;sqrt{3}}{2}i &#92;right)^{5} ' class='latex' /> expresar en forma binomial y trigonometrica el numero complejo <img src='http://s0.wp.com/latex.php?latex=%5Cfrac%7BA%7D%7BB%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;frac{A}{B} ' title='&#92;frac{A}{B} ' class='latex' /> .</p>
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			<media:title type="html">iskay</media:title>
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		<title>Tercera Practica Calificada de Complementos de Matemática &#8211; Ciclo 2005 &#8211; I (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/12/tercera-practica-calificada-de-complementos-de-matematica-ciclo-2005-i-unmsm-fcm/</link>
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		<pubDate>Thu, 12 Jun 2008 01:03:40 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Complemento Matematico]]></category>
		<category><![CDATA[complemento]]></category>
		<category><![CDATA[congruencias]]></category>
		<category><![CDATA[diofanticas]]></category>
		<category><![CDATA[divisibilidad]]></category>
		<category><![CDATA[mcd]]></category>
		<category><![CDATA[primos]]></category>
		<category><![CDATA[teoria de numeros]]></category>

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		<description><![CDATA[NOTA: Sólo resuelva 5 preguntas. 1.- Pruebe que si y y , entonces . Pruebe que si y , entonces . 2.- Demuestre: Si , entonces . 3.- Demuestre: Si , entonces . 4.- Demuestre: 5.- Si tiene divisores, hallar: El número de divisores de . La suma de divisores de 6.- Formulado una ecuación [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=18&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>NOTA: Sólo resuelva 5 preguntas.</p>
<p><strong>1.-</strong></p>
<ul>
<li>Pruebe que si <img src='http://s0.wp.com/latex.php?latex=%28a%2Cb%29+%3D+1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(a,b) = 1' title='(a,b) = 1' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=a%7Cc+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='a|c ' title='a|c ' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=b%7Cc+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='b|c ' title='b|c ' class='latex' />, entonces <img src='http://s0.wp.com/latex.php?latex=ab+%7C+c&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='ab | c' title='ab | c' class='latex' />.</li>
<li>Pruebe que si <img src='http://s0.wp.com/latex.php?latex=%28a%2Cb%29+%3D+1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(a,b) = 1' title='(a,b) = 1' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=d+%7C+%28a%2Bb%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='d | (a+b)' title='d | (a+b)' class='latex' />, entonces <img src='http://s0.wp.com/latex.php?latex=%28a%2Cd%29%3D%28b%2Cd%29+%3D1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(a,d)=(b,d) =1' title='(a,d)=(b,d) =1' class='latex' />.</li>
</ul>
<p><strong>2.-</strong> Demuestre: Si <img src='http://s0.wp.com/latex.php?latex=%28a%2C+240%29+%3D+1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(a, 240) = 1' title='(a, 240) = 1' class='latex' />, entonces <img src='http://s0.wp.com/latex.php?latex=240+%7C+a%5E%7B4%7D+-+1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='240 | a^{4} - 1' title='240 | a^{4} - 1' class='latex' />.</p>
<p><strong>3.-</strong> Demuestre: Si <img src='http://s0.wp.com/latex.php?latex=a%3E1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='a&gt;1' title='a&gt;1' class='latex' />, entonces <img src='http://s0.wp.com/latex.php?latex=%28+a%5E%7Bm%7D+-+1+%2C+a%5E%7Bn%7D+-+1%29+%3D+a%5E%7B%28m%2Cn%29%7D-1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='( a^{m} - 1 , a^{n} - 1) = a^{(m,n)}-1' title='( a^{m} - 1 , a^{n} - 1) = a^{(m,n)}-1' class='latex' />.</p>
<p><strong>4.-</strong> Demuestre:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=MCD+%5Cleft%28+%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D+%2C+2n+%2B1+%5Cright%29+%3D+1%2C+%5Cforall+n+%5Cin+%5Cmathbb%7BN%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='MCD &#92;left( &#92;frac{n(n+1)}{2} , 2n +1 &#92;right) = 1, &#92;forall n &#92;in &#92;mathbb{N}' title='MCD &#92;left( &#92;frac{n(n+1)}{2} , 2n +1 &#92;right) = 1, &#92;forall n &#92;in &#92;mathbb{N}' class='latex' /></p>
<p><strong>5.-</strong> Si <img src='http://s0.wp.com/latex.php?latex=N+%3D+13%5E%7Ba%7D+%5Ctimes+49%5E%7Bb%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='N = 13^{a} &#92;times 49^{b}' title='N = 13^{a} &#92;times 49^{b}' class='latex' /> tiene <img src='http://s0.wp.com/latex.php?latex=%5Coverline%7Bbb%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;overline{bb}' title='&#92;overline{bb}' class='latex' /> divisores, hallar:</p>
<ul>
<li>El número de divisores de <img src='http://s0.wp.com/latex.php?latex=%5Coverline%7Babba%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;overline{abba}' title='&#92;overline{abba}' class='latex' />.</li>
<li>La suma de divisores de <img src='http://s0.wp.com/latex.php?latex=%5Coverline%7Bbaab%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;overline{baab}' title='&#92;overline{baab}' class='latex' /></li>
</ul>
<p><strong>6.-</strong> Formulado una ecuación diofántica, resuelva el siguiente problema:</p>
<p>Cuando un empleado fue ha cambiar en efectivo un cheque por <img src='http://s0.wp.com/latex.php?latex=x&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x' title='x' class='latex' /> billletes de S./ 100 e <img src='http://s0.wp.com/latex.php?latex=y+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y ' title='y ' class='latex' /> monedas de S./ 2, recibió a cambio <img src='http://s0.wp.com/latex.php?latex=y&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y' title='y' class='latex' /> billetes de S./ 100 y <img src='http://s0.wp.com/latex.php?latex=x&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x' title='x' class='latex' /> monedas de S./2 y se dio cuenta que había recibido S./ 2 mas que el triple de la cantidad real. <span class="a">¿</span>Qué cantidad indicaba el cheque?.</p>
<p><strong>7.-</strong> Pruebe que el sistema</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=x+%5Cequiv+a+%5Cbmod%7Bm_%7B1%7D%7D+%5C%5C+y+%5Cequiv+b+%5Cbmod%7Bm_%7B2%7D%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x &#92;equiv a &#92;bmod{m_{1}} &#92;&#92; y &#92;equiv b &#92;bmod{m_{2}} ' title='x &#92;equiv a &#92;bmod{m_{1}} &#92;&#92; y &#92;equiv b &#92;bmod{m_{2}} ' class='latex' /></p>
<p>admite solución si y solo si <img src='http://s0.wp.com/latex.php?latex=%28+m_%7B1%7D%2C+m_%7B2%7D+%29+%7C+%28a-b%29+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='( m_{1}, m_{2} ) | (a-b) ' title='( m_{1}, m_{2} ) | (a-b) ' class='latex' />.</p>
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		<title>Examen Parcial de Matemática Básica &#8211; Ciclo 2005 &#8211; II (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/11/examen-pacial-de-matematica-basica-ciclo-2005-ii-unmsm-fcm/</link>
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		<pubDate>Wed, 11 Jun 2008 03:46:13 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[matematica basica]]></category>
		<category><![CDATA[basica]]></category>
		<category><![CDATA[conjuntos]]></category>
		<category><![CDATA[induccion]]></category>
		<category><![CDATA[inecuaciones]]></category>
		<category><![CDATA[logica]]></category>
		<category><![CDATA[relaciones de equivalencia]]></category>
		<category><![CDATA[sumatorias]]></category>

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		<description><![CDATA[Resolver sólo 5 de las 6 preguntas: 1.- Definamos la proposición . Si y , simplificar . 2.- Demostrar que si y , entonces . 3.- Sea un conjunto y . Consideremos la relación en , definida por si y solo si, . Demuestre que es una relación de equivalencia. Como son las clases de [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=17&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Resolver sólo 5 de las 6 preguntas:</p>
<p><strong>1.-</strong> Definamos la proposición <img src='http://s0.wp.com/latex.php?latex=p%2Aq+%5Cequiv+%5Csim+%5Clbrack+%5Csim+p+%5CRightarrow+q+%5Crbrack+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='p*q &#92;equiv &#92;sim &#92;lbrack &#92;sim p &#92;Rightarrow q &#92;rbrack ' title='p*q &#92;equiv &#92;sim &#92;lbrack &#92;sim p &#92;Rightarrow q &#92;rbrack ' class='latex' />. Si <img src='http://s0.wp.com/latex.php?latex=r+%5Cequiv+%28p%2Ap%29%2A%28q%2Aq%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='r &#92;equiv (p*p)*(q*q)' title='r &#92;equiv (p*p)*(q*q)' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=s+%5Cequiv+%28p%2Aq%29%2A+%5Clbrack+%28+%5Csim+%2A+%28p%2Aq%29%29%2Aq%29+%5Crbrack+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='s &#92;equiv (p*q)* &#92;lbrack ( &#92;sim * (p*q))*q) &#92;rbrack ' title='s &#92;equiv (p*q)* &#92;lbrack ( &#92;sim * (p*q))*q) &#92;rbrack ' class='latex' />, simplificar <img src='http://s0.wp.com/latex.php?latex=r+%5CRightarrow+s&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='r &#92;Rightarrow s' title='r &#92;Rightarrow s' class='latex' />.</p>
<p><strong>2.-</strong> Demostrar que si <img src='http://s0.wp.com/latex.php?latex=A+%5Ccap+B+%3D+A+%5Ccap+C+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A &#92;cap B = A &#92;cap C ' title='A &#92;cap B = A &#92;cap C ' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=A+%5Ccup+B+%3D+A+%5Ccup+C&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A &#92;cup B = A &#92;cup C' title='A &#92;cup B = A &#92;cup C' class='latex' />, entonces <img src='http://s0.wp.com/latex.php?latex=B+%3D+C&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B = C' title='B = C' class='latex' />.</p>
<p><strong>3.-</strong> Sea <img src='http://s0.wp.com/latex.php?latex=E&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E' title='E' class='latex' /> un conjunto y <img src='http://s0.wp.com/latex.php?latex=B+%5Csubset+E&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B &#92;subset E' title='B &#92;subset E' class='latex' />. Consideremos la relación <img src='http://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='R' title='R' class='latex' /> en <img src='http://s0.wp.com/latex.php?latex=E&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E' title='E' class='latex' />, definida por <img src='http://s0.wp.com/latex.php?latex=%28X%2CY%29+%5Cin+R+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(X,Y) &#92;in R ' title='(X,Y) &#92;in R ' class='latex' /> si y solo si, <img src='http://s0.wp.com/latex.php?latex=X+%5Ccap+B+%3D+Y+%5Ccap+B&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='X &#92;cap B = Y &#92;cap B' title='X &#92;cap B = Y &#92;cap B' class='latex' />. Demuestre que <img src='http://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='R' title='R' class='latex' /> es una relación de equivalencia. Como son las clases de equivalencia?.</p>
<p><strong>4.-</strong> Hallar, justificando su respuesta, el supremo e infimo, si existen del conjunto</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=A%3D+%5C%7B+x+%5Cin+%5Cmathbb%7BR%7D+%2F+%5C%2C+%5Cfrac%7B%28x+%2B+%7C+x+%7C+%29%28+%7C+x%5E%7B2%7D+%2B+%7Cx+%7C+%7C+-+6%29%7D%7B+%7Cx+%7C+-+2%7D+%3C+0+%5C%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='A= &#92;{ x &#92;in &#92;mathbb{R} / &#92;, &#92;frac{(x + | x | )( | x^{2} + |x | | - 6)}{ |x | - 2} &lt; 0 &#92;} ' title='A= &#92;{ x &#92;in &#92;mathbb{R} / &#92;, &#92;frac{(x + | x | )( | x^{2} + |x | | - 6)}{ |x | - 2} &lt; 0 &#92;} ' class='latex' /></p>
<p><strong>5.-</strong> Pruebe que <img src='http://s0.wp.com/latex.php?latex=%5Csqrt%7B5%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;sqrt{5}' title='&#92;sqrt{5}' class='latex' /> no es un numero natural.</p>
<p><strong>6.-</strong> Demostrar por inducción matemática que:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%5Csum_%7Bk%3D1%7D%5En+sen%282k-1%29x+%3D+%5Cfrac%7B1+-+cos%282nx%29%7D%7B2senx%7D++&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;sum_{k=1}^n sen(2k-1)x = &#92;frac{1 - cos(2nx)}{2senx}  ' title='&#92;sum_{k=1}^n sen(2k-1)x = &#92;frac{1 - cos(2nx)}{2senx}  ' class='latex' /></p>
<p style="text-align:right;"><em>11 de Noviembre del 2005</em></p>
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		<title>Examen Final de Calculo II &#8211; PM 121A UNI</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/09/examen-final-de-calculo-ii-pm-121a-uni/</link>
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		<pubDate>Mon, 09 Jun 2008 18:05:31 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Calculo]]></category>
		<category><![CDATA[Calculo II]]></category>
		<category><![CDATA[calculo]]></category>
		<category><![CDATA[elipses]]></category>
		<category><![CDATA[integrales]]></category>
		<category><![CDATA[solidos]]></category>
		<category><![CDATA[volumenes]]></category>

		<guid isPermaLink="false">http://examenesypracticas.wordpress.com/?p=15</guid>
		<description><![CDATA[1.- Evaluar las siguientes integrales 2.- Hallar el area de la región limitada por las partes internas y externas de la curva: 3.- Hallar la fórmula del volumen para una cuna cuyos limites son: La base de un cilindro recto regular y el plano que pasa por el diametro de la base de dicho cilindro. [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=15&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>1.-</strong> Evaluar las siguientes integrales</p>
<ul>
<li><img src='http://s0.wp.com/latex.php?latex=%5Cint+%5Cfrac%7B%28e%5E%7B4x%7D%2B1%29e%5E%7B2x%7D%7D%7Be%5E%7B6x%7D+%2B+e%5E%7B4x%7D%2Be%5E%7B2x%7D%7D+%5C%2C+dx+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;int &#92;frac{(e^{4x}+1)e^{2x}}{e^{6x} + e^{4x}+e^{2x}} &#92;, dx ' title='&#92;int &#92;frac{(e^{4x}+1)e^{2x}}{e^{6x} + e^{4x}+e^{2x}} &#92;, dx ' class='latex' /></li>
</ul>
<ul>
<li><img src='http://s0.wp.com/latex.php?latex=%5Cint+%5Cfrac%7B2%281%2Bx%5E%7B4%7D%29%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D+%2B+%281+%2B+x%5E3%29%5E%7B+%5Cfrac%7B-4%7D%7B3%7D%7D%7D%7Bx%5E%7B3%7D%7D+%5C%2C+dx+&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;int &#92;frac{2(1+x^{4})^{&#92;frac{1}{2}} + (1 + x^3)^{ &#92;frac{-4}{3}}}{x^{3}} &#92;, dx ' title='&#92;int &#92;frac{2(1+x^{4})^{&#92;frac{1}{2}} + (1 + x^3)^{ &#92;frac{-4}{3}}}{x^{3}} &#92;, dx ' class='latex' /></li>
</ul>
<p><strong>2.-</strong> Hallar el area de la región limitada por las partes internas y externas de la curva:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=r+%3D+sen%5E3%28%5Cfrac%7B%5Ctheta%7D%7B3%7D%29++&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='r = sen^3(&#92;frac{&#92;theta}{3})  ' title='r = sen^3(&#92;frac{&#92;theta}{3})  ' class='latex' /></p>
<p><strong>3.-</strong> Hallar la fórmula del volumen para una cuna cuyos limites son: La base de un cilindro recto regular y el plano que pasa por el diametro de la base de dicho cilindro. El plano y la base forman un angulo de <img src='http://s0.wp.com/latex.php?latex=45%5E%7B%5Ccirc+%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='45^{&#92;circ }' title='45^{&#92;circ }' class='latex' /></p>
<p><strong>4.-</strong> Un cilindro deformable se mueve de tal manera que uno de los puntos de su circunferencia se encuentra en el eje X. El centro describe la elipse <img src='http://s0.wp.com/latex.php?latex=%5Cfrac%7Bx%5E%7B2%7D%7D%7Ba%5E%7B2%7D%7D+%2B+%5Cfrac%7By%5E%7B2%7D%7D%7Bb%5E%7B2%7D%7D+%3D+1&#038;bg=ffffff&#038;fg=000000&#038;s=2' alt='&#92;frac{x^{2}}{a^{2}} + &#92;frac{y^{2}}{b^{2}} = 1' title='&#92;frac{x^{2}}{a^{2}} + &#92;frac{y^{2}}{b^{2}} = 1' class='latex' />; y el plano del circulo perpendicular al eje X. Calcular el volumen del sólido generado.</p>
<p><strong>5.-</strong> Dos cilindros de radio <img src='http://s0.wp.com/latex.php?latex=R&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='R' title='R' class='latex' /> se cortan perpendicularmente. Hallar el volumen de su intersección.</p>
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		<title>Segunda Practica Calificada Complementos de Matematica &#8211; Ciclo 2005 &#8211; I (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/08/segunda-practica-calificada-complementos-de-matematica-ciclo-2005-i-unmsm-fcm/</link>
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		<pubDate>Sun, 08 Jun 2008 20:32:41 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Complemento Matematico]]></category>
		<category><![CDATA[lineal]]></category>
		<category><![CDATA[planos]]></category>
		<category><![CDATA[rectas]]></category>
		<category><![CDATA[refleccion]]></category>
		<category><![CDATA[rotacion]]></category>
		<category><![CDATA[transformaciones lineales]]></category>
		<category><![CDATA[vectores]]></category>
		<category><![CDATA[volumens]]></category>

		<guid isPermaLink="false">http://examenesypracticas.wordpress.com/?p=14</guid>
		<description><![CDATA[1.- Hallar el volumen de la pirámide limitada por los planos coordenados y el plano

$latex P_{1}: \, (2,-3,6).((x,y,z)-(3,-2,2))=0$.

(4 pts)

2.- Hallar la ecuación general y vectorial del plano $latex P$ perpendicular al plano que pasa por $latex (1,1,0) $ , $latex (2,0,1)$ y $latex (0,3,1)$, si se sabe que la recta

$latex L: \, \frac{x-1}{2} = \frac{y+2}{-3} = \frac{x-2}{2} $

Está contenida en $latex P $

(4 pts)<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=14&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>1.-</strong> Hallar el volumen de la pirámide limitada por los planos coordenados y el plano</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=P_%7B1%7D%3A+%5C%2C+%282%2C-3%2C6%29.%28%28x%2Cy%2Cz%29-%283%2C-2%2C2%29%29%3D0&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='P_{1}: &#92;, (2,-3,6).((x,y,z)-(3,-2,2))=0' title='P_{1}: &#92;, (2,-3,6).((x,y,z)-(3,-2,2))=0' class='latex' />.</p>
<p style="text-align:right;"><em>(4 pts)</em></p>
<p><strong>2.- </strong>Hallar la ecuación general y vectorial del plano <img src='http://s0.wp.com/latex.php?latex=P&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='P' title='P' class='latex' /> perpendicular al plano que pasa por <img src='http://s0.wp.com/latex.php?latex=%281%2C1%2C0%29+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(1,1,0) ' title='(1,1,0) ' class='latex' /> , <img src='http://s0.wp.com/latex.php?latex=%282%2C0%2C1%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(2,0,1)' title='(2,0,1)' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=%280%2C3%2C1%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(0,3,1)' title='(0,3,1)' class='latex' />, si se sabe que la recta</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=L%3A+%5C%2C+%5Cfrac%7Bx-1%7D%7B2%7D+%3D+%5Cfrac%7By%2B2%7D%7B-3%7D+%3D+%5Cfrac%7Bx-2%7D%7B2%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='L: &#92;, &#92;frac{x-1}{2} = &#92;frac{y+2}{-3} = &#92;frac{x-2}{2} ' title='L: &#92;, &#92;frac{x-1}{2} = &#92;frac{y+2}{-3} = &#92;frac{x-2}{2} ' class='latex' /></p>
<p style="text-align:right;"><em> </em></p>
<p>Está contenida en <img src='http://s0.wp.com/latex.php?latex=P+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='P ' title='P ' class='latex' /></p>
<p style="text-align:right;"><em>(4 pts)</em></p>
<p><strong>3.-</strong> Sea <img src='http://s0.wp.com/latex.php?latex=T_%7B1%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{1}' title='T_{1}' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=T_%7B2%7D%3A+%5Cmathbb%7BR%7D%5E2+%5Cto+%5Cmathbb%7BR%7D%5E2+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{2}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' title='T_{2}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' class='latex' /> dos transformaciones lineales. Demuestre que :</p>
<ul>
<li><img src='http://s0.wp.com/latex.php?latex=T_%7B1%7D+%5Ccirc+T_%7B2%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{1} &#92;circ T_{2}' title='T_{1} &#92;circ T_{2}' class='latex' /> es también una transformación lineal.</li>
<li>Si <img src='http://s0.wp.com/latex.php?latex=T_%7B1%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{1}' title='T_{1}' class='latex' /> es inyectiva, entonces es isomorfo.</li>
</ul>
<p style="text-align:right;"><em>(4 pts)</em></p>
<p><strong>4.-</strong></p>
<ul>
<li>Sea <img src='http://s0.wp.com/latex.php?latex=T_%7B3%7D%3A+%5Cmathbb%7BR%7D%5E2+%5Cto+%5Cmathbb%7BR%7D%5E2+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{3}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' title='T_{3}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' class='latex' /> la reflexión respecto a la recta de ecuación <img src='http://s0.wp.com/latex.php?latex=y+%3D+3x&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y = 3x' title='y = 3x' class='latex' />. Hallar la inversa de <img src='http://s0.wp.com/latex.php?latex=T_%7B3%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{3}' title='T_{3}' class='latex' />.</li>
<li>Sea <img src='http://s0.wp.com/latex.php?latex=T_%7B1%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{1}' title='T_{1}' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=T_%7B2%7D%3A+%5Cmathbb%7BR%7D%5E2+%5Cto+%5Cmathbb%7BR%7D%5E2+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T_{2}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' title='T_{2}: &#92;mathbb{R}^2 &#92;to &#92;mathbb{R}^2 ' class='latex' /> una transformación ortogonal. Demuestre que</li>
</ul>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=T%28u%29.T%28v%29+%3D+0+%5Cleftrightarrow+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T(u).T(v) = 0 &#92;leftrightarrow ' title='T(u).T(v) = 0 &#92;leftrightarrow ' class='latex' /> <img src='http://s0.wp.com/latex.php?latex=u.v+%3D+0&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='u.v = 0' title='u.v = 0' class='latex' /></p>
<p style="text-align:right;"><em>(4 pts)</em></p>
<p><strong>5.-</strong> Hallar la rotación que simplifica la ecuación</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=8x%5E2-3xy%2B4y%5E2+-10+%3D+0&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='8x^2-3xy+4y^2 -10 = 0' title='8x^2-3xy+4y^2 -10 = 0' class='latex' /></p>
<p>de modo que la curva carece del término <img src='http://s0.wp.com/latex.php?latex=xy&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='xy' title='xy' class='latex' /> en el nuevo sistema. Esboze el gráfico de la curva.</p>
<p style="text-align:right;"><em>(4 pts)</em></p>
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		<title>Examen Parcial de Matematica Básica &#8211; 2005 &#8211; II (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/08/examen-parcial-de-matematica-basica-2005-ii-unmsm-fcm/</link>
		<comments>http://examenesypracticas.wordpress.com/2008/06/08/examen-parcial-de-matematica-basica-2005-ii-unmsm-fcm/#comments</comments>
		<pubDate>Sun, 08 Jun 2008 00:46:40 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[matematica basica]]></category>
		<category><![CDATA[Matematicas]]></category>
		<category><![CDATA[Parciales]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[basica]]></category>
		<category><![CDATA[conjuntos]]></category>
		<category><![CDATA[desigualdades]]></category>
		<category><![CDATA[igualdades]]></category>
		<category><![CDATA[induccion]]></category>
		<category><![CDATA[inecuacion]]></category>
		<category><![CDATA[matematica]]></category>
		<category><![CDATA[relaciones]]></category>

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		<description><![CDATA[1.- Simplificar la siguiente expresión . 2.- Demostrar que si y son dos conjuntos y , , entonces 3.- Sea el orden usual en el conjunto de los numeros naturales . Sea definamos en la relación Demostrar que es una relación de orden total en . 4.- Resolver la inecuación en : 5.- Demostrar que<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=12&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>1.- Simplificar la siguiente expresión</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%5C%7B+%5Clbrack+P+%5Cwedge+%28Q+%5Cto+R%29+%5Crbrack+%5Cvee+%5Clbrack+%28P+%5Cwedge+Q%29+%5Cto+R+%5Crbrack+%5C%7D+%5Cvee+%5C%7B+%5Clbrack+P+%5Cvee+%28Q+%5Cto+R%29+%5Crbrack+%5Cwedge+%5Clbrack+%28P+%5Cvee+Q%29+%5Cto+R+%5Crbrack+%5C%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;{ &#92;lbrack P &#92;wedge (Q &#92;to R) &#92;rbrack &#92;vee &#92;lbrack (P &#92;wedge Q) &#92;to R &#92;rbrack &#92;} &#92;vee &#92;{ &#92;lbrack P &#92;vee (Q &#92;to R) &#92;rbrack &#92;wedge &#92;lbrack (P &#92;vee Q) &#92;to R &#92;rbrack &#92;} ' title='&#92;{ &#92;lbrack P &#92;wedge (Q &#92;to R) &#92;rbrack &#92;vee &#92;lbrack (P &#92;wedge Q) &#92;to R &#92;rbrack &#92;} &#92;vee &#92;{ &#92;lbrack P &#92;vee (Q &#92;to R) &#92;rbrack &#92;wedge &#92;lbrack (P &#92;vee Q) &#92;to R &#92;rbrack &#92;} ' class='latex' /> .</p>
<p>2.- Demostrar que si <img src='http://s0.wp.com/latex.php?latex=E&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E' title='E' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=F&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='F' title='F' class='latex' /> son dos conjuntos y <img src='http://s0.wp.com/latex.php?latex=A+%5Cin+E&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A &#92;in E' title='A &#92;in E' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=B+%5Cin+F&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B &#92;in F' title='B &#92;in F' class='latex' />, entonces</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%28E+%5Ctimes+F%29+-+%28+A+%5Ctimes+B%29+%3D+%28%28E-A%29+%5Ctimes+F%29+%5Ccap+%28E+%5Ctimes+%28+F-B%29%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(E &#92;times F) - ( A &#92;times B) = ((E-A) &#92;times F) &#92;cap (E &#92;times ( F-B))' title='(E &#92;times F) - ( A &#92;times B) = ((E-A) &#92;times F) &#92;cap (E &#92;times ( F-B))' class='latex' /></p>
<p>3.- Sea <img src='http://s0.wp.com/latex.php?latex=%5Cle+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;le ' title='&#92;le ' class='latex' /> el orden usual en el conjunto de los numeros naturales <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BN%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{N}' title='&#92;mathbb{N}' class='latex' />.</p>
<p>Sea <img src='http://s0.wp.com/latex.php?latex=E+%3D+%5Cmathbb%7BN%7D+%5Ctimes+%5Cmathbb%7BN%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E = &#92;mathbb{N} &#92;times &#92;mathbb{N} ' title='E = &#92;mathbb{N} &#92;times &#92;mathbb{N} ' class='latex' /> definamos en <img src='http://s0.wp.com/latex.php?latex=E+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E ' title='E ' class='latex' /> la relación</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%28a%2Cb%29+%5Csim+%28c%2Cd%29+%5Cleftrightarrow+a+%3C+c+%5Cvee+%28+a+%3D+c+%5Cwedge+b+%5Cle+c+%29+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(a,b) &#92;sim (c,d) &#92;leftrightarrow a &lt; c &#92;vee ( a = c &#92;wedge b &#92;le c ) ' title='(a,b) &#92;sim (c,d) &#92;leftrightarrow a &lt; c &#92;vee ( a = c &#92;wedge b &#92;le c ) ' class='latex' /></p>
<p>Demostrar que <img src='http://s0.wp.com/latex.php?latex=%5Csim+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;sim ' title='&#92;sim ' class='latex' /> es una relación de orden total en <img src='http://s0.wp.com/latex.php?latex=E+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='E ' title='E ' class='latex' />.</p>
<p>4.- Resolver la inecuación en <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BR%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{R}' title='&#92;mathbb{R}' class='latex' />:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%5Cfrac%7B+%7C+1+-+x+%7C+%7D%7B1+-+%7Cx%7C%7D+%3C+%5Cfrac%7B1+%2B+%7Cx%7C%7D%7B%7C1%2Bx%7C%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;frac{ | 1 - x | }{1 - |x|} &lt; &#92;frac{1 + |x|}{|1+x|} ' title='&#92;frac{ | 1 - x | }{1 - |x|} &lt; &#92;frac{1 + |x|}{|1+x|} ' class='latex' /></p>
<p>5.- Demostrar que</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=1+%2B+2+%5Ctimes+2%5E%7B-1%7D+%2B+3+%5Ctimes+2%5E%7B-2%7D+%2B+%5Cdots+%2B+n+%5Ctimes+2%5E%7B-%28n-1%29%7D+%3D+4+-+%28n%2B2%29+%5Ctimes+2%5E%7B-%28n-1%29%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='1 + 2 &#92;times 2^{-1} + 3 &#92;times 2^{-2} + &#92;dots + n &#92;times 2^{-(n-1)} = 4 - (n+2) &#92;times 2^{-(n-1)}' title='1 + 2 &#92;times 2^{-1} + 3 &#92;times 2^{-2} + &#92;dots + n &#92;times 2^{-(n-1)} = 4 - (n+2) &#92;times 2^{-(n-1)}' class='latex' /></p>
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		<title>Examen Parcial de Calculo IV &#8211; Ciclo 2008 &#8211; I (UNMSM &#8211; FCM)</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/06/examen-parcial-de-calculo-iv-ciclo-2008-i-unmsm-fcm/</link>
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		<pubDate>Fri, 06 Jun 2008 01:51:17 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Calculo]]></category>
		<category><![CDATA[Matematicas]]></category>
		<category><![CDATA[Parciales]]></category>
		<category><![CDATA[calculo]]></category>
		<category><![CDATA[calculo 4]]></category>
		<category><![CDATA[calculo IV]]></category>
		<category><![CDATA[examen parcial]]></category>
		<category><![CDATA[integrales]]></category>
		<category><![CDATA[integrales dobles]]></category>

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		<description><![CDATA[Este es un examen parcial bien accesible.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=10&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>1.</strong> Sea <img src='http://s0.wp.com/latex.php?latex=f%28x%2Cy%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='f(x,y)' title='f(x,y)' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='D' title='D' class='latex' /> la region limitada por las curvas:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=x+%3D+-1&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x = -1' title='x = -1' class='latex' />,   <img src='http://s0.wp.com/latex.php?latex=x+%3D+%28y%2B1%29%5E%7B2%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x = (y+1)^{2}' title='x = (y+1)^{2}' class='latex' />,   <img src='http://s0.wp.com/latex.php?latex=y+%3D+-2&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y = -2' title='y = -2' class='latex' />   y   <img src='http://s0.wp.com/latex.php?latex=y+%3D+sen%28%5Cpi+x%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y = sen(&#92;pi x)' title='y = sen(&#92;pi x)' class='latex' /></p>
<p>Calcular <img src='http://s0.wp.com/latex.php?latex=%5Ciint_%7BD%7D+f%28x%2Cy%29+dx+dy&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;iint_{D} f(x,y) dx dy' title='&#92;iint_{D} f(x,y) dx dy' class='latex' /></p>
<p><strong>2.</strong> Sea</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=f%28x%2Cy%2Cz%29+%3D+%28+x%5E%7B2%7D%2C+y%5E%7B2%7D%2C+z%5E%7B2%7D%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='f(x,y,z) = ( x^{2}, y^{2}, z^{2})' title='f(x,y,z) = ( x^{2}, y^{2}, z^{2})' class='latex' /></p>
<p>Calcular <img src='http://s0.wp.com/latex.php?latex=%5Cint_%7BC%7D+f.d+%5Calpha&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;int_{C} f.d &#92;alpha' title='&#92;int_{C} f.d &#92;alpha' class='latex' /> , donde <img src='http://s0.wp.com/latex.php?latex=%5Calpha&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;alpha' title='&#92;alpha' class='latex' /> parametrización de <img src='http://s0.wp.com/latex.php?latex=C&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='C' title='C' class='latex' /> donde <img src='http://s0.wp.com/latex.php?latex=C&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='C' title='C' class='latex' /> es la curva dada por la intersección de las superficies</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=x%5E%7B2%7D+%2B+y%5E%7B2%7D+%2B+z%5E%7B2%7D+%3D+4&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x^{2} + y^{2} + z^{2} = 4' title='x^{2} + y^{2} + z^{2} = 4' class='latex' />   y   <img src='http://s0.wp.com/latex.php?latex=x%3Dy&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x=y' title='x=y' class='latex' />.</p>
<p><strong>3.</strong> Sean <img src='http://s0.wp.com/latex.php?latex=u&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='u' title='u' class='latex' /> y <img src='http://s0.wp.com/latex.php?latex=v&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='v' title='v' class='latex' /> campos escalares de clase <img src='http://s0.wp.com/latex.php?latex=C%5E%7B1%7D%28D%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='C^{1}(D)' title='C^{1}(D)' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='D' title='D' class='latex' /> abierto y conexo de <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BR%7D%5E%7B2%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{R}^{2}' title='&#92;mathbb{R}^{2}' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BR%7D+%5Csubset+D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{R} &#92;subset D' title='&#92;mathbb{R} &#92;subset D' class='latex' /> una región limitada por una curva de Jordan <img src='http://s0.wp.com/latex.php?latex=C&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='C' title='C' class='latex' /> regular.</p>
<p>Demuestre que:</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%5Coint_%7BC%7D+uv+dx+%2B+uv+dy+%3D+%5Ciint_%7BR%7D+%5Cleft%5B+v+%5Cleft%28+%5Cfrac%7B%5Cpartial+u%7D%7B%5Cpartial+x%7D+-+%5Cfrac%7B%5Cpartial+u%7D%7B%5Cpartial+y%7D+%5Cright%29+%2B+u+%5Cleft%28+%5Cfrac%7B%5Cpartial+v%7D%7B%5Cpartial+x%7D+-+%5Cfrac%7B%5Cpartial+v%7D%7B%5Cpartial+y%7D+%5Cright%29+%5Cright%5D+dxdy&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;oint_{C} uv dx + uv dy = &#92;iint_{R} &#92;left[ v &#92;left( &#92;frac{&#92;partial u}{&#92;partial x} - &#92;frac{&#92;partial u}{&#92;partial y} &#92;right) + u &#92;left( &#92;frac{&#92;partial v}{&#92;partial x} - &#92;frac{&#92;partial v}{&#92;partial y} &#92;right) &#92;right] dxdy' title='&#92;oint_{C} uv dx + uv dy = &#92;iint_{R} &#92;left[ v &#92;left( &#92;frac{&#92;partial u}{&#92;partial x} - &#92;frac{&#92;partial u}{&#92;partial y} &#92;right) + u &#92;left( &#92;frac{&#92;partial v}{&#92;partial x} - &#92;frac{&#92;partial v}{&#92;partial y} &#92;right) &#92;right] dxdy' class='latex' /></p>
<p><strong>4.</strong> Calcular</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=%5Cint_%7B0%7D%5E%7B1%7D+%5Cint_%7Bx%5E%7B2%7D%7D%5E%7Bx%7D+%28+x%5E%7B2%7D+%2B+y%5E%7B2%7D%29%5E%7B-+%5Cfrac%7B1%7D%7B2%7D%7Ddy+dx&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;int_{0}^{1} &#92;int_{x^{2}}^{x} ( x^{2} + y^{2})^{- &#92;frac{1}{2}}dy dx' title='&#92;int_{0}^{1} &#92;int_{x^{2}}^{x} ( x^{2} + y^{2})^{- &#92;frac{1}{2}}dy dx' class='latex' /><em></em></p>
<p style="text-align:left;">
<p style="text-align:left;"><em>Duración: 120 minutos.</em><strong><br />
</strong></p>
<p style="text-align:center;">
<p style="text-align:right;"><em>05-06-08</em></p>
<br /><img alt="" border="0" src="http://feeds.wordpress.com/1.0/categories/examenesypracticas.wordpress.com/10/" /> <img alt="" border="0" src="http://feeds.wordpress.com/1.0/tags/examenesypracticas.wordpress.com/10/" /> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/examenesypracticas.wordpress.com/10/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/examenesypracticas.wordpress.com/10/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/examenesypracticas.wordpress.com/10/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=10&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<slash:comments>1</slash:comments>
	
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		<title>Examen Parcial de Algebra Lineal II &#8211; Ciclo 2007-II</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/03/examen-parcial-de-algebra-lineal-ii-ciclo-2007-ii/</link>
		<comments>http://examenesypracticas.wordpress.com/2008/06/03/examen-parcial-de-algebra-lineal-ii-ciclo-2007-ii/#comments</comments>
		<pubDate>Tue, 03 Jun 2008 05:29:12 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Algebra Lineal]]></category>
		<category><![CDATA[Matematicas]]></category>
		<category><![CDATA[Parciales]]></category>
		<category><![CDATA[diagonalizacion]]></category>
		<category><![CDATA[matrices]]></category>
		<category><![CDATA[Parcial]]></category>

		<guid isPermaLink="false">http://examenesypracticas.wordpress.com/?p=7</guid>
		<description><![CDATA[Este examen es bien operativo.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=7&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>1.- Dada <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28%5Cmathbb%7BR%7D%5E3%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(&#92;mathbb{R}^3)' title='T &#92;in L(&#92;mathbb{R}^3)' class='latex' /> definida por <img src='http://s0.wp.com/latex.php?latex=T%28x%2Cy%2Cz%29+%3D+%283z%2By%2C3y%2Bz%2Cx%2B3z%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T(x,y,z) = (3z+y,3y+z,x+3z)' title='T(x,y,z) = (3z+y,3y+z,x+3z)' class='latex' /> y</p>
<p style="text-align:center;"><img src='http://s0.wp.com/latex.php?latex=A%3D%5Cfrac%7B1%7D%7B2%7D%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D6%262%260+%5C%5C+2%266%26-4+%5C%5C+-1%261%266+%5Cend%7Barray%7D%5Cright%29+%5Cin+%5Cmathbb%7BR%7D%5E3+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A=&#92;frac{1}{2}&#92;left(&#92;begin{array}{ccc}6&amp;2&amp;0 &#92;&#92; 2&amp;6&amp;-4 &#92;&#92; -1&amp;1&amp;6 &#92;end{array}&#92;right) &#92;in &#92;mathbb{R}^3 ' title='A=&#92;frac{1}{2}&#92;left(&#92;begin{array}{ccc}6&amp;2&amp;0 &#92;&#92; 2&amp;6&amp;-4 &#92;&#92; -1&amp;1&amp;6 &#92;end{array}&#92;right) &#92;in &#92;mathbb{R}^3 ' class='latex' />.</p>
<p>Hallar la base <img src='http://s0.wp.com/latex.php?latex=B&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B' title='B' class='latex' /> de <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BR%7D%5E3&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{R}^3' title='&#92;mathbb{R}^3' class='latex' /> tal que <img src='http://s0.wp.com/latex.php?latex=M_%7BB%7D%28T%29%3DA&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='M_{B}(T)=A' title='M_{B}(T)=A' class='latex' />.</p>
<p>2.- Sea <img src='http://s0.wp.com/latex.php?latex=V&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='V' title='V' class='latex' /> un <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BK%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{K}' title='&#92;mathbb{K}' class='latex' /> &#8211; espacio vectorial y <img src='http://s0.wp.com/latex.php?latex=B+%3D+%7B+v_%7B1%7D%2C+%5Cdots+%2C+v_%7Bn%7D%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B = { v_{1}, &#92;dots , v_{n}}' title='B = { v_{1}, &#92;dots , v_{n}}' class='latex' /> una base de <img src='http://s0.wp.com/latex.php?latex=V&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='V' title='V' class='latex' />.</p>
<p>Si <img src='http://s0.wp.com/latex.php?latex=A+%5Cin+%5Cmathbb%7BK%7D%5E%7Bn+%5Ctimes+n%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='A &#92;in &#92;mathbb{K}^{n &#92;times n}' title='A &#92;in &#92;mathbb{K}^{n &#92;times n}' class='latex' /> es la matriz asociada a una <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28V%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(V)' title='T &#92;in L(V)' class='latex' /> en la base <img src='http://s0.wp.com/latex.php?latex=B&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B' title='B' class='latex' />, hallar <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28V%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(V)' title='T &#92;in L(V)' class='latex' />.</p>
<p>3.- Dada <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28+%5Cmathbb%7BR%7D%5E%7B3%7D%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L( &#92;mathbb{R}^{3})' title='T &#92;in L( &#92;mathbb{R}^{3})' class='latex' /> definida por</p>
<p><img src='http://s0.wp.com/latex.php?latex=T%28x%2Cy%2Cz%29+%3D+%28-14x+%2B+72y+-+60z%2C+-9x+%2B+40y+-+30z%2C+-6x+%2B24y+-16z%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T(x,y,z) = (-14x + 72y - 60z, -9x + 40y - 30z, -6x +24y -16z)' title='T(x,y,z) = (-14x + 72y - 60z, -9x + 40y - 30z, -6x +24y -16z)' class='latex' /></p>
<p>determinar si <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28+%5Cmathbb%7BR%7D%5E3%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L( &#92;mathbb{R}^3)' title='T &#92;in L( &#92;mathbb{R}^3)' class='latex' /> es diagonalizable, en caso afirmativo obtener su matriz asociada, diagonal.</p>
<p>4.- Dado <img src='http://s0.wp.com/latex.php?latex=V&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='V' title='V' class='latex' /> un <img src='http://s0.wp.com/latex.php?latex=%5Cmathbb%7BR%7D&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='&#92;mathbb{R}' title='&#92;mathbb{R}' class='latex' /> &#8211; espacio vectorial de dimension finita y <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28V%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(V)' title='T &#92;in L(V)' class='latex' />.</p>
<p>Probar que:</p>
<ol>
<li><img src='http://s0.wp.com/latex.php?latex=%28Nu%28T%29%29_%7B%5Cmathbb%7BC%7D%7D+%3D+Nu%28T_%7B%5Cmathbb%7BC%7D%7D%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(Nu(T))_{&#92;mathbb{C}} = Nu(T_{&#92;mathbb{C}})' title='(Nu(T))_{&#92;mathbb{C}} = Nu(T_{&#92;mathbb{C}})' class='latex' />.</li>
<li>Si <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28V%29+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(V) ' title='T &#92;in L(V) ' class='latex' /> es invesible entonces <img src='http://s0.wp.com/latex.php?latex=%28T%5E%7B-1%7D%29_%7B%5Cmathbb%7BC%7D%7D+%3D+%28T_%7B%5Cmathbb%7BC%7D%7D%29%5E%7B-1%7D+&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='(T^{-1})_{&#92;mathbb{C}} = (T_{&#92;mathbb{C}})^{-1} ' title='(T^{-1})_{&#92;mathbb{C}} = (T_{&#92;mathbb{C}})^{-1} ' class='latex' />.</li>
</ol>
<p>5.- Dada <img src='http://s0.wp.com/latex.php?latex=T+%5Cin+L%28%5Cmathbb%7BR%7D%5E3%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T &#92;in L(&#92;mathbb{R}^3)' title='T &#92;in L(&#92;mathbb{R}^3)' class='latex' /> definida por <img src='http://s0.wp.com/latex.php?latex=T%28x%2Cy%2Cz%29+%3D+%2815z%2C+x+-17z%2C+y%2B7z%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='T(x,y,z) = (15z, x -17z, y+7z)' title='T(x,y,z) = (15z, x -17z, y+7z)' class='latex' />, hallar <img src='http://s0.wp.com/latex.php?latex=M_%7BB%7D%28T%29&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='M_{B}(T)' title='M_{B}(T)' class='latex' /> (la representacion mas simple), indicando la base <img src='http://s0.wp.com/latex.php?latex=B&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='B' title='B' class='latex' /> que lo consigue.</p>
<p><em><br />
</em></p>
<p><em>Duracion: 120 minutos.</em></p>
<p style="text-align:right;"><em>09/10/07 </em></p>
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			<media:title type="html">iskay</media:title>
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		<title>El Nacimiento de la ayuda</title>
		<link>http://examenesypracticas.wordpress.com/2008/06/03/el-nacimiento-de-la-ayuda/</link>
		<comments>http://examenesypracticas.wordpress.com/2008/06/03/el-nacimiento-de-la-ayuda/#comments</comments>
		<pubDate>Tue, 03 Jun 2008 03:45:35 +0000</pubDate>
		<dc:creator>matiskay</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[inicio]]></category>
		<category><![CDATA[presentacion]]></category>

		<guid isPermaLink="false">http://examenesypracticas.wordpress.com/?p=3</guid>
		<description><![CDATA[Dada la necesidad de muchos para practicar antes de los examenes y que mejor manera de hacerlo con examenes reales que se hayan tomado anteriormente en distintas universidades en especial Universidades Peruanas. Me he visto con la necesidad de buscar dichos examenes por la red o pedir ha algunos de mis compañeros de estudios algunos [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=examenesypracticas.wordpress.com&amp;blog=3883462&amp;post=3&amp;subd=examenesypracticas&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Dada la necesidad de muchos para practicar antes de los examenes y que mejor manera de hacerlo con examenes reales que se hayan tomado anteriormente en distintas universidades en especial Universidades Peruanas.</p>
<p>Me he visto con la necesidad de buscar dichos examenes por la red o pedir ha algunos de mis compañeros de estudios algunos examenes que ellos tengan, pero muchas veces me he visto con la negativa de ellos y he quedado en el aire, perdiendo tiempo en la busqueda.</p>
<p>Este Blog nace con el fin de publicar examenes en especial examenes de <span style="font-weight:bold;"><strong>Ciencias </strong></span><span>creo que son los mas dificiles de conseguir</span> y espero la colaboracion de muchos de ustedes para formar una comunidad alrededor de esto.</p>
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