Посчитать [latex] \frac{53}{8- \sqrt{11} } + \frac{2}{ \sqrt{13} + \sqrt{11} } - \frac{9}{ \sqrt{13} +2} [/latex]

[latex] \frac{53(8+ \sqrt{11} )}{53} + \frac{2( \sqrt{13}- \sqrt{11} }{2} - \frac{9( \sqrt{13}-2) }{9}=8+ \sqrt{11} +\sqrt{13}-\sqrt{11} -(\sqrt{13}-2) \\ \\  8+\sqrt{13}-\sqrt{13}+2=10 [/latex]