Question

(1/3) raised to rhe power -3 subtracted from (1/2) raised to the power -3 been divided from (1/4) raised to the power -3

Answer 1

We have (1/a)^-n = (a^-1)^-n= a^n
{°•° [(a^m)^n]= a^(mn) }

so (1/3)^ -3 = 3³
(1/2)^-3 = 2³
(1/4)^- 3= 4³

As per given data,

Required no.= (3³- 2³)/4³ = (27-8)/64=19/64


:) Hope it helps