Question

Oblicz: a) (2/3) do potegi -3 b) (-2,5) do potegi -2 c) 3 do pot. -2 * 2/3 - (9/8) do potegi -1

Answer 1

(2/3)^{-3}=(3/2)^3=27/8

 

(2 1/2)^{-2}=(5/2)^{-2}=(2/5)^2=4/25

 

1/9*2/3-8/9=2/27-24/27=-22/27