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Сократи дроби:

1. \(\dfrac{x^2-11}{x+\sqrt{11}}=\) [ \(x - \sqrt{11}\) | \(x + \sqrt{11}\) | \(x - 11\) ];

2. \(\dfrac{a+3\sqrt{a}}{a-9}=\) [ \(\cfrac{\sqrt{a}}{\sqrt{a} + 3}\) | \(\cfrac{\sqrt{a}}{\sqrt{a} - 3}\) | \(\cfrac{\sqrt{a}}{a - 3}\) ];

3. \(\dfrac{m-12\sqrt{m}+36}{m-36}=\) [ \(\cfrac{m - 6}{m + 6}\) | \(\cfrac{m + 6}{m - 6}\) | \(\cfrac{\sqrt{m} - 6}{\sqrt{m} + 6}\) ].