Question

Cat se obtine :1 supra  √3+1 + 1 supra √3-1

 = ??

Answer 1

 $\frac{^{\sqrt3-1)}1}{\sqrt3+1}+\frac{^{\sqrt3+1)}1}{\sqrt3-1}=\frac{\sqrt3-\not1+\sqrt3+\not1}{3-1}=\frac{\not2\sqrt3}{\not2}=\sqrt3$