Question

[Nga Phạm]

1.\(\sqrt{5+2\sqrt{6}}-\sqrt{5-2\sqrt{6}}\)

2.\(\sqrt{9-4\sqrt{5}}-\sqrt{9+\sqrt{80}}\)

3.\(\sqrt{17-12\sqrt{2}}-\sqrt{24-8\sqrt{8}}\)

4.\(\sqrt{3+2\sqrt{2}}-\sqrt{6-4\sqrt{2}}\)

5.\(\sqrt{8+2\sqrt{15}}-\sqrt{8-2\sqrt{15}}\)

6.\(\sqrt{17-3\sqrt{32}}+\sqrt{17+3\sqrt{32}}\)

7.\(\sqrt{6+2\sqrt{5}}+\sqrt{6-2\sqrt{5}}\)

Answer 1

[svtkvtm]

https://i.imgur.com/g7mbF2P.jpg

Answer 2

[๖ۣۜTina Ss]

1. \(\sqrt{5+2\sqrt{6}}-\sqrt{5-2\sqrt{6}}\)

\(=\sqrt{\left(\sqrt{2}+\sqrt{3}\right)^2}-\sqrt{\left(\sqrt{3}-\sqrt{2}\right)^2}\)

\(=\sqrt{2}+\sqrt{3}-\sqrt{3}+\sqrt{2}\)

\(=2\sqrt{2}\)