Question

qual a conta devo fazer pra descobrir a raiz quadrada de 7,111...

Answer 1

Calcula 1° a dízima

$7,111..=7+ \frac{1}{9} = \frac{7.9+1}{9} = \frac{64}{9}$

agora coloque na raiz

$\sqrt{ \frac{64}{9} } = \sqrt{ \frac{2^6}{3^2} } = \frac{2^3}{3} = \frac{8}{3}$