Question

a raiz quadrada de 64/169

Answer 1

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$\sqrt{ \frac{64}{169} } \\ \\ \frac{ \sqrt{64} }{ \sqrt{169} } \\ \\ \frac{ \sqrt{8 {}^{2} } }{ \sqrt{169} } \\ \\ \frac{ \sqrt{8 {}^{2} } }{ \sqrt{13 {}^{2} } } \\ \\ \frac{8}{ \sqrt{13 {}^{2} } } \\ \\ \frac{8}{13}$

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