Question

Calculează: Cine mă poate ajuta dau coroană!!​

Answer 1

a)

$( \sqrt{ \frac{5}{11} } )^{3} \times \frac{( \sqrt{11}) ^{5} }{( \sqrt{5}) ^{7} } = \\ \frac{5}{11} \times \sqrt{ \frac{5}{11} } \times \frac{ {11}^{2} \sqrt{11} }{ {5}^{3} \sqrt{5} } = \\ \frac{ \sqrt{5} }{ \sqrt{11} } \times \frac{11 \sqrt{11} }{ {5}^{2} \sqrt{5} } = \\ \frac{11}{5 ^{2} } = \frac{11}{25}$

b)