Question

a)(8 pe 11)^2 b)(3 pe 4)^3 c)(-2 pe 3)^4 d)(-5/6)^3 e)(1 6/7)^2

Answer 1

a) (8/11)² = 8²/11²=64/121;
b) (3/4)³ = 3³/4³ = 27/64 ;
c) (-2/3)⁴ =(-2)⁴/3⁴=16/81 ;
d) (-5/6)³ = -125/216 ;
c) (1 intreg si 6/7)²=  (13/7)² = 169/49 ;