Question

hộ mình câu 16 bài 1 vs ạ

Answer 1

16.

\(\frac{2a}{3}\sqrt{\frac{9b}{4a}}=\sqrt{(\frac{2a}{3})^2}.\sqrt{\frac{9b}{4a}}=\sqrt{\frac{4a^2}{9}}.\sqrt{\frac{9b}{4a}}=\sqrt{\frac{4a^2}{9}.\frac{9b}{4a}}=\sqrt{ab}\)