(27/8)^-2/3+(17/8)^2/3+(0.25)^-2-[(-3)^2]^3/2

问题描述:

(27/8)^-2/3+(17/8)^2/3+(0.25)^-2-[(-3)^2]^3/2
求答案

(27/8)^-2/3+(27/8)^2/3+(0.25)^-2-[(-3)^2]^3/2
=(3/2)^-2+(3/2)^2+4²-3³
=4/9+9/4+16-9
=16/36+9/36+9
=9又25/36