Question

(√2) la puterea -2 cat este?

Answer 1

$\sqrt{2} ^{-2}=[tex] \frac{1}{ \sqrt{2} ^{2} }$=$\frac{1}{2}$ [/tex]


Cand se ridica la patrat inseamna ca scapi de radical,radicalul dispare si ramane ce este sub radical.

Answer 2

(√2)₋²=1/(√2)²=1/2=0,5