Question

square root 4/5

Answer 1

\[\frac{2\sqrt{5}}{5}\]

Answer 2

\[\sqrt{\frac{4}{5}}\]

\[\frac{\sqrt{4}}{\sqrt{5}}\]

\[\frac{\sqrt{4}\sqrt{5}}{\sqrt{5}\sqrt{5}}\]

\[\frac{2\sqrt{5}}{5}\]

So \[\sqrt{\frac{4}{5}}=\frac{2\sqrt{5}}{5}\]

Answer 3

thanks!

Answer 4

Welks!