Question

rút gọn

A=\(A=\frac{\sqrt{3}-\sqrt{6}}{1-\sqrt{2}}-\frac{2+\sqrt{8}}{1+\sqrt{2}}\)

Answer 1

Lời giải:
\(A=\frac{\sqrt{3}(1-\sqrt{2})}{1-\sqrt{2}}-\frac{2(1+\sqrt{2})}{1+\sqrt{2}}=\sqrt{3}-2\)