Rút...
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Rút gọn:
1.\(\sqrt{17+12\sqrt{2}}\) + \(\sqrt{17-12\sqrt{2}}\)
2.\(\sqrt{32+\sqrt{50}}\)- \(2\sqrt{8}\)+ \(\sqrt{18}\)
3. \(\sqrt{\frac{1}{2}}\)+ \(\sqrt{4,5}\)+\(\sqrt{12,5}\)
4.\(\sqrt{\left(1-2\sqrt{3}\right)^2}\)-\(\sqrt{4-2\sqrt{3}}\)
mn giúp e với ạ
