Question

resolva as radicais
1- √49
2- √0,16
3- ∛8
4- ∛69

Answer 1

$1) \sqrt{49} \\ \sqrt{49} \\ \sqrt{7 {}^{2} } \\ \sqrt[2]{7 {}^{2} } \\ 7 \\ \sqrt{7 {}^{2} } \\ 7 \\ resposta \\ \red{7} \\ \\ 2) \sqrt{0.16} \\ \sqrt{0.16} \\ 0.16 \\ \frac{16}{100} \\ \frac{ \cancel1 \cancel6}{ \cancel1 \cancel0 \cancel0} \\ \frac{4}{25} \\ 0.16 \\ \frac{ \sqrt{4} }{25} \\ \frac{ \sqrt{4} }{ \sqrt{25}} \\ \frac{ \sqrt{2 {}^{2} } }{ \sqrt{25}} \\ \frac{ \sqrt{4} }{ \sqrt{25} } \\ \frac{ \sqrt{2 {}^{2} } }{ \sqrt{5 {}^{2} } } \\ \frac{2}{ \sqrt{5 {}^{2} } } \\ \frac{ \sqrt{2 {}^{2}}}{ \sqrt{5 {}^{2}}} \\ \frac{2}{5} \\ \frac{4}{25} \\ \frac{2}{5} \\ resposta \\ \red{\frac{2}{5}}$

$3) \sqrt[3]{8} \\ \sqrt[3]{8} \\ \sqrt[3]{2 {}^{3} } \\ 2 \\ resposta \\ \red{2} \\ \\ 4) \sqrt[3]{69} \\ \sqrt[3]{69} \\ 4.10157 \\ resposta \\ \red{4.10157}$