Question

De ce $2^\frac{1}{2} = (\frac{1}{2} ) ^\frac{-1}{2}$ ?

Answer 1

2^1/2=(1/2)^-1/2

păi 2^1/2=(1/2)^-1/2 pt ca folosesti formula (1/a)^-n=a^n

vine (1/2)^-1/2=(2^-1)^-1/2=2^1/2

si 2^1/2=2^1/2