Question

Answer 1

Đề yêu cầu gì em nhỉ?

Answer 2

\(C=\dfrac{x\sqrt{2}}{\sqrt{2x}\left(\sqrt{x}+\sqrt{2}\right)}+\dfrac{\sqrt{2}\left(\sqrt{x}-\sqrt{2}\right)}{\left(\sqrt{x}-\sqrt{2}\right)\left(\sqrt{x}+\sqrt{2}\right)}\)

\(=\dfrac{\sqrt{x}}{\sqrt{x}+\sqrt{2}}+\dfrac{\sqrt{2}}{\sqrt{x}+\sqrt{2}}\)

\(=\dfrac{\sqrt{x}+\sqrt{2}}{\sqrt{x}+\sqrt{2}}=1\)