Respostas

2014-03-19T22:07:15-03:00
\sqrt{441}= 21\\ \sqrt{968} = \sqrt{11^2\cdot2^2\cdot2} =\sqrt{11^2}\cdot\sqrt{2^2}\cdot\sqrt{2} =11\cdot2\cdot\sqrt{2} =22\sqrt{2} \\ \sqrt{1936} = \sqrt{2^4\cdot11^2} =\sqrt{2^4}\cdot\sqrt{11^2}\cdot =2^2\cdot11 =4\cdot11=44

√441: racional
√968: irracioal
√1936: racional
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