Question

[Đinh Thị Hải Thanh]

bài 1: rút gọn

a, \(\sqrt{\frac{2}{3}}-\sqrt{24}+2\sqrt{\frac{3}{8}}+\sqrt{\frac{1}{6}}\)

b, \(\sqrt{\frac{2}{2-\sqrt{3}}}-\sqrt{\frac{2}{2+\sqrt{3}}}\)

c, \(2\sqrt{a}-\frac{5}{a}\sqrt{9a^3}+a\sqrt{\frac{4}{a}}-\frac{2}{a^2}\sqrt{25a^5}\left(vớia>0\right)\)