Question

Пришлите решение задачи номер 12

Answer 1

$\frac{7+2\cdot\sqrt{7\cdot 17}+17}{12+\sqrt{119}}=\frac{24+2\sqrt{119}}{12+\sqrt{119}}=\frac{2 \cdot(12+\sqrt{119} )}{12+\sqrt{119}}=2$

Answer 2

$\frac{( \sqrt{7} + \sqrt{17} ) ^{2} }{12+ \sqrt{119} } = \frac{7+17+2 \sqrt{119} }{12+ \sqrt{119} } = \frac{24+2 \sqrt{119} }{12+ \sqrt{119} } = \frac{2(12+ \sqrt{119)} }{12+ \sqrt{119} } =2$