Rút gọn các biểu thức sau
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Bài 1. Rút gọn các biểu thức sau:
1) \(\sqrt{45} + \sqrt{20} - \sqrt{180}\)
2) \(\sqrt{32} - 2\sqrt{18} + 4\sqrt{50}\)
3) \(3\sqrt{2} - 4\sqrt{18} + 2\sqrt{32} - \sqrt{50}\)
4) \(\sqrt{(2-\sqrt{3})^3} + \sqrt{(1-\sqrt{3})^2}\)
5) \(\sqrt{(5-3)^2} + \sqrt{(5-2)^2}\)
6) \(1/\sqrt{3} - \sqrt{3}/\sqrt{2}\)
7) \(\sqrt{5-2} + 5 - 2\sqrt{3}\)
8) \(1/(5 + 2\sqrt{3}) + 5 - 2/\sqrt{3}\)
9) \(\sqrt{5 - 5 + 1}\)
10) \(\sqrt{6 - \sqrt{3}} - \sqrt{2 - 1}\)
11) \(\sqrt{5 - 2\sqrt{5} + 1} - \sqrt{5}\)
12) \(2\sqrt{3} - 2\sqrt{5} - 1\)
13) \(\sqrt{(2-\sqrt{3})} + \sqrt{(1-\sqrt{3})}\)
14) \(\sqrt{5 + 2\sqrt{6} - 5 - 2\sqrt{6}}\)
15) \(\sqrt{(2 + \sqrt{2})^3} - \sqrt{(3\sqrt{2}-1)}\)
Bài 1. Rút gọn các biểu thức sau:
1) \(\sqrt{45} + \sqrt{20} - \sqrt{180}\)
2) \(\sqrt{32} - 2\sqrt{18} + 4\sqrt{50}\)
3) \(3\sqrt{2} - 4\sqrt{18} + 2\sqrt{32} - \sqrt{50}\)
4) \(\sqrt{(2-\sqrt{3})^3} + \sqrt{(1-\sqrt{3})^2}\)
5) \(\sqrt{(5-3)^2} + \sqrt{(5-2)^2}\)
6) \(1/\sqrt{3} - \sqrt{3}/\sqrt{2}\)
7) \(\sqrt{5-2} + 5 - 2\sqrt{3}\)
8) \(1/(5 + 2\sqrt{3}) + 5 - 2/\sqrt{3}\)
9) \(\sqrt{5 - 5 + 1}\)
10) \(\sqrt{6 - \sqrt{3}} - \sqrt{2 - 1}\)
11) \(\sqrt{5 - 2\sqrt{5} + 1} - \sqrt{5}\)
12) \(2\sqrt{3} - 2\sqrt{5} - 1\)
13) \(\sqrt{(2-\sqrt{3})} + \sqrt{(1-\sqrt{3})}\)
14) \(\sqrt{5 + 2\sqrt{6} - 5 - 2\sqrt{6}}\)
15) \(\sqrt{(2 + \sqrt{2})^3} - \sqrt{(3\sqrt{2}-1)}\)