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	<title>Blog de matematica</title>
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		<title>Blog de matematica</title>
		<link>http://blogdematematica.wordpress.com</link>
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	<atom:link rel="search" type="application/opensearchdescription+xml" href="http://blogdematematica.wordpress.com/osd.xml" title="Blog de matematica" />
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		<item>
		<title>Tot divizibilitate</title>
		<link>http://blogdematematica.wordpress.com/2010/05/21/tot-divizibilitate/</link>
		<comments>http://blogdematematica.wordpress.com/2010/05/21/tot-divizibilitate/#comments</comments>
		<pubDate>Fri, 21 May 2010 00:00:17 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Clasa a VI-a]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=52</guid>
		<description><![CDATA[Sa se gaseasca cel mai mare numar natural d care divide orice numar de forma n(n+1)(2n+1996), n fiind un numar natural.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=52&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Sa se gaseasca cel mai mare numar natural d care divide orice numar de forma<br />
n(n+1)(2n+1996), n fiind un numar natural.</p>
<br />  <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/blogdematematica.wordpress.com/52/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/blogdematematica.wordpress.com/52/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/blogdematematica.wordpress.com/52/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=52&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<slash:comments>0</slash:comments>
	
		<media:content url="http://1.gravatar.com/avatar/95eeebf41bb11a83f6b8088582d97b82?s=96&#38;d=identicon&#38;r=G" medium="image">
			<media:title type="html">marcelinapopa</media:title>
		</media:content>
	</item>
		<item>
		<title>Divizibilitate</title>
		<link>http://blogdematematica.wordpress.com/2010/05/20/divizibilitate/</link>
		<comments>http://blogdematematica.wordpress.com/2010/05/20/divizibilitate/#comments</comments>
		<pubDate>Thu, 20 May 2010 23:58:01 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Clasa a V-a]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=48</guid>
		<description><![CDATA[Sa se gaseasca cel mai mare numar natural d care divide orice numar de forma n(n+1)(2n+1), n fiind un numar natural.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=48&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Sa se gaseasca cel mai mare numar natural d care divide orice numar de forma<br />
n(n+1)(2n+1), n fiind un numar natural. </p>
<br />  <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/blogdematematica.wordpress.com/48/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/blogdematematica.wordpress.com/48/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/blogdematematica.wordpress.com/48/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=48&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">marcelinapopa</media:title>
		</media:content>
	</item>
		<item>
		<title>De retinut (si de demonstrat)!!!</title>
		<link>http://blogdematematica.wordpress.com/2010/05/20/de-retinut-si-de-demonstrat/</link>
		<comments>http://blogdematematica.wordpress.com/2010/05/20/de-retinut-si-de-demonstrat/#comments</comments>
		<pubDate>Thu, 20 May 2010 17:31:15 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Clasa a VI-a]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=41</guid>
		<description><![CDATA[Intr-un triunghi dreptunghic cu un unghi de 15 grade, inaltimea dusa din varful unghiului drept este egala cu o patrime din ipotenuza.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=41&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Intr-un triunghi dreptunghic cu un unghi de 15 grade, inaltimea dusa din varful unghiului drept este egala cu o patrime din ipotenuza. </p>
<br />  <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/blogdematematica.wordpress.com/41/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/blogdematematica.wordpress.com/41/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/blogdematematica.wordpress.com/41/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=41&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">marcelinapopa</media:title>
		</media:content>
	</item>
		<item>
		<title>Problemă din Gazeta Matematică Constanţa</title>
		<link>http://blogdematematica.wordpress.com/2009/11/06/problema-din-gazeta-matematica-constanta/</link>
		<comments>http://blogdematematica.wordpress.com/2009/11/06/problema-din-gazeta-matematica-constanta/#comments</comments>
		<pubDate>Fri, 06 Nov 2009 17:03:06 +0000</pubDate>
		<dc:creator>teomilea</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=39</guid>
		<description><![CDATA[Rezolvaţi în N: a) (n+1)^2+n+2010=2+4+6+&#8230;+4018<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=39&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Rezolvaţi în N:</p>
<p>a) (n+1)^2+n+2010=2+4+6+&#8230;+4018</p>
<br />  <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/blogdematematica.wordpress.com/39/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/blogdematematica.wordpress.com/39/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/blogdematematica.wordpress.com/39/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=39&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<slash:comments>2</slash:comments>
	
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			<media:title type="html">teomilea</media:title>
		</media:content>
	</item>
		<item>
		<title>Test pentru R &amp; T</title>
		<link>http://blogdematematica.wordpress.com/2009/11/01/test-pentru-r-t/</link>
		<comments>http://blogdematematica.wordpress.com/2009/11/01/test-pentru-r-t/#comments</comments>
		<pubDate>Sun, 01 Nov 2009 17:45:21 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Clasa a VI-a]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=33</guid>
		<description><![CDATA[Timp de lucru: 120 minute. Testul e de nivelul olimpiadei judetene. Gasiti subiectele aici. Dati clic pe imagine pentru o vizualizare mai buna.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=33&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Timp de lucru: 120 minute.<br />
Testul e de nivelul olimpiadei judetene.<br />
Gasiti subiectele <a href="http://blogdematematica.files.wordpress.com/2009/11/test-120-minute.jpg">aici</a>. Dati clic pe imagine pentru o vizualizare mai buna. </p>
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		<slash:comments>3</slash:comments>
	
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			<media:title type="html">marcelinapopa</media:title>
		</media:content>
	</item>
		<item>
		<title>12 unghiuri</title>
		<link>http://blogdematematica.wordpress.com/2009/11/01/12-unghiuri/</link>
		<comments>http://blogdematematica.wordpress.com/2009/11/01/12-unghiuri/#comments</comments>
		<pubDate>Sun, 01 Nov 2009 17:07:19 +0000</pubDate>
		<dc:creator>razvandorobantu</dc:creator>
				<category><![CDATA[Clasa a VI-a]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=30</guid>
		<description><![CDATA[Se dau unghiurile , astfel incat oricare doua dintre ele nu au puncte interioare comune. Semidreptele si sunt opuse, iar masurile celor 12 unghiuri, exprimate in grade, sunt numere naturale pare consecutive. a). Aflati masurile unghiurilor. b). Exista doua dintre cele 12 bisectoare ale unghiurilor care sa aiba dreptele suport perpendiculare?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=30&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Se dau unghiurile <img src='http://s0.wp.com/latex.php?latex=%5Csphericalangle+A_1OA_2%2C%5Csphericalangle+A_2OA_3%2C...%2C%5Csphericalangle+A_%7B12%7DOA_%7B13%7D&amp;bg=ffffff&amp;fg=000000&amp;s=0' alt='&#92;sphericalangle A_1OA_2,&#92;sphericalangle A_2OA_3,...,&#92;sphericalangle A_{12}OA_{13}' title='&#92;sphericalangle A_1OA_2,&#92;sphericalangle A_2OA_3,...,&#92;sphericalangle A_{12}OA_{13}' class='latex' />, astfel incat oricare doua dintre ele nu au puncte interioare comune. Semidreptele <img src='http://s0.wp.com/latex.php?latex=%28OA_1&amp;bg=ffffff&amp;fg=000000&amp;s=0' alt='(OA_1' title='(OA_1' class='latex' /> si <img src='http://s0.wp.com/latex.php?latex=%28OA_%7B13%7D&amp;bg=ffffff&amp;fg=000000&amp;s=0' alt='(OA_{13}' title='(OA_{13}' class='latex' /> sunt opuse, iar masurile celor 12 unghiuri, exprimate in grade, sunt numere naturale pare consecutive.<br />
a). Aflati masurile unghiurilor.<br />
b). Exista doua dintre cele 12 bisectoare ale unghiurilor care sa aiba dreptele suport perpendiculare? </p>
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			<media:title type="html">razvandorobantu</media:title>
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		<title>Test latex</title>
		<link>http://blogdematematica.wordpress.com/2009/11/01/test-latex/</link>
		<comments>http://blogdematematica.wordpress.com/2009/11/01/test-latex/#comments</comments>
		<pubDate>Sun, 01 Nov 2009 16:23:36 +0000</pubDate>
		<dc:creator>razvandorobantu</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=26</guid>
		<description><![CDATA[<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=26&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><img src='http://s0.wp.com/latex.php?latex=2%5E3&amp;bg=ffffff&amp;fg=000000&amp;s=0' alt='2^3' title='2^3' class='latex' /><br />
<img src='http://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Bx%2B3%7D&amp;bg=ffffff&amp;fg=000000&amp;s=0' alt='&#92;frac{1}{x+3}' title='&#92;frac{1}{x+3}' class='latex' /></p>
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			<media:title type="html">razvandorobantu</media:title>
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		<title>O problema cu fractii ireductibile</title>
		<link>http://blogdematematica.wordpress.com/2009/11/01/o-problema/</link>
		<comments>http://blogdematematica.wordpress.com/2009/11/01/o-problema/#comments</comments>
		<pubDate>Sun, 01 Nov 2009 16:17:56 +0000</pubDate>
		<dc:creator>razvandorobantu</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=24</guid>
		<description><![CDATA[Fie n numar natural, n&#62;1 si mutimea A={1/n, 2/n, &#8230;, (n-1)/n} a) Deternminati cel mai mic nr. natural n pt. care A contine exact 6 fractii ireductibile. b)Aratati ca multimea A contine un nr. par de fractii ireductibile.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=24&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Fie n numar natural, n&gt;1 si mutimea A={1/n, 2/n, &#8230;, (n-1)/n}</p>
<p>a) Deternminati cel mai mic nr. natural n pt. care A contine exact 6 fractii ireductibile.</p>
<p>b)Aratati ca multimea A contine un nr. par de fractii ireductibile.</p>
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			<media:title type="html">razvandorobantu</media:title>
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		<title>Teste TIMSS online</title>
		<link>http://blogdematematica.wordpress.com/2009/10/07/teste-timss-online/</link>
		<comments>http://blogdematematica.wordpress.com/2009/10/07/teste-timss-online/#comments</comments>
		<pubDate>Wed, 07 Oct 2009 01:57:26 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://blogdematematica.wordpress.com/?p=20</guid>
		<description><![CDATA[Am gasit un site pe care se pot da teste TIMSS online: edinformatics.com.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=20&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Am gasit un site pe care se pot da teste TIMSS online: <a href="http://www.edinformatics.com/timss/timss_intro.htm">edinformatics.com</a>. </p>
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			<media:title type="html">marcelinapopa</media:title>
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		<title>Prima fila</title>
		<link>http://blogdematematica.wordpress.com/2009/09/27/hello-world/</link>
		<comments>http://blogdematematica.wordpress.com/2009/09/27/hello-world/#comments</comments>
		<pubDate>Sun, 27 Sep 2009 20:25:45 +0000</pubDate>
		<dc:creator>Marcelina Popa</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false"></guid>
		<description><![CDATA[Se spune ca matematica se poate face doar cu hartie si creion si ca,  din acest motiv, e la indemana oricui, indiferent in ce catun indepartat ar trai. Tocmai de aceea am ales tema aceasta simpla pentru blog: albul hartiei si un pix. O lume simpla si austera, din afara. O lume vie si colorata, [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=blogdematematica.wordpress.com&amp;blog=9678419&amp;post=1&amp;subd=blogdematematica&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Se spune ca matematica se poate face doar cu hartie si creion si ca,  din acest motiv, e la indemana oricui, indiferent in ce catun indepartat ar trai. Tocmai de aceea am ales tema aceasta simpla pentru blog: albul hartiei si un pix.</p>
<p>O lume simpla si austera, din afara. O lume vie si colorata, pe dinauntru.</p>
<p>Va fi un blog pentru cei care deja indragesc matematica. Nu ma gandesc la o matematica foarte inalta, ci la o matematica elementara, dar la fel de frumoasa (si de dificila) ca matematicile superioare.</p>
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			<media:title type="html">marcelinapopa</media:title>
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