Toán học - Lớp 9
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1) \( \frac{2}{\sqrt{3}-1} + \frac{3}{\sqrt{3}-2} + \frac{6}{\sqrt{3}-3} \)
2) \( A = \sqrt{3} - \sqrt{5} - \sqrt{3} + \sqrt{5} \)
3) \( B = \sqrt{6} + \sqrt{11} - \sqrt{6} - \sqrt{11} \)
4) \( G = \sqrt{3} + 2\sqrt{2} - \sqrt{6} - 4\sqrt{2} \)
5) \( U = (4 - \sqrt{7})(\sqrt{14} + \sqrt{2}) \sqrt{4} + \sqrt{7} \)
1) \( \frac{2}{\sqrt{3}-1} + \frac{3}{\sqrt{3}-2} + \frac{6}{\sqrt{3}-3} \)
2) \( A = \sqrt{3} - \sqrt{5} - \sqrt{3} + \sqrt{5} \)
3) \( B = \sqrt{6} + \sqrt{11} - \sqrt{6} - \sqrt{11} \)
4) \( G = \sqrt{3} + 2\sqrt{2} - \sqrt{6} - 4\sqrt{2} \)
5) \( U = (4 - \sqrt{7})(\sqrt{14} + \sqrt{2}) \sqrt{4} + \sqrt{7} \)