

Tính
[tex]\frac{\sqrt{3-\sqrt{5}}.(3+\sqrt{5})}{\sqrt{10}+\sqrt{2}}[/tex]
[tex]\frac{2\sqrt{10}+\sqrt{30}-2\sqrt{2}-\sqrt{6}}{2\sqrt{10}-2\sqrt{2}}[/tex]
[tex]\frac{\sqrt{3-\sqrt{5}}.(3+\sqrt{5})}{\sqrt{10}+\sqrt{2}}[/tex]
[tex]\frac{2\sqrt{10}+\sqrt{30}-2\sqrt{2}-\sqrt{6}}{2\sqrt{10}-2\sqrt{2}}[/tex]