

P=[tex](\sqrt{x}+\frac{y-\sqrt{xy}}{\sqrt{x}+\sqrt{y}}): (\frac{x}{\sqrt{xy}+y}+\frac{y}{\sqrt{xy}-x}-\frac{x+y}{\sqrt{xy}})[/tex]
1/ Rút gọn P
2/ Tính P khi x=3, y=4+[tex]2\sqrt{3}[/tex]
1/ Rút gọn P
2/ Tính P khi x=3, y=4+[tex]2\sqrt{3}[/tex]