Question

$\sqrt{(-13) ^{2} + 3^{3}$ /21 por favor me ajudem please

Answer 1

$(-13)^2 = 169 \\ 3^3 = 27\\\\ \frac{ \sqrt{169 + 27} }{21} =\\\\ \frac{\sqrt{196}}{21} \\\\ \frac{14}{21} \\\\ \frac{2}{3}$

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