Question

Срочно прошу!!!!!!!!!!

Answer 1

$\sqrt{a^{11}} = \sqrt{a^{10}*a^1} = a^5\sqrt{a}$

$\sqrt{2x^{14}} =|x|^7*\sqrt{2} =(-x)^7*\sqrt{2} =-x^7*\sqrt{2}$

$(\sqrt{11+2\sqrt{30}} + \sqrt{11-2\sqrt{30}})^2=(\sqrt{11+2\sqrt{30}})^2 + 2*\sqrt{11+2\sqrt{30}}*\sqrt{11-2\sqrt{30}} + (\sqrt{11-2\sqrt{30}})^2=11+2\sqrt{30} + 2*\sqrt{11^2-(2\sqrt{30})^2} + 11-2\sqrt{30}=22+ 2*\sqrt{121-4*30}= 22+2*\sqrt{121-120}=22+2*1=24$