Question

Tính

\(\dfrac{2\sqrt{5}}{\sqrt{25}}.\dfrac{\sqrt{4}}{\sqrt{6}}\)

Answer 1

20*6^(1/4)

Answer 2

\(=\dfrac{2\sqrt{5}}{\sqrt{5}.\sqrt{5}}.\dfrac{2}{\sqrt{6}}=\dfrac{4}{\sqrt{30}}=\dfrac{2\sqrt{30}}{15}\)

Answer 3

\(\dfrac{2\sqrt{5}}{\sqrt{25}}.\dfrac{\sqrt{4}}{\sqrt{6}}=\dfrac{2\sqrt{5}}{5}.\dfrac{2}{\sqrt{6}}=\dfrac{4\sqrt{5}}{5\sqrt{6}}\)