Question

Racionalize os radicais 2/√5 *

Answer 1

Espero ter ajudado.

$\frac{2}{\sqrt{5}}=\frac{2\sqrt{5}}{\sqrt{5}\sqrt{5}}=\frac{2\sqrt{5}}{5}$

Answer 2

$\frac{2}{\sqrt{5}}=\frac{2\sqrt{5}}{\sqrt{5}\sqrt{5}}=\frac{2\sqrt{5}}{25}$