Question

como resolver [(-1/2)³:(-1/2)².(-1/2)³+2-²

Answer 1

Olá, Meyre.

$(-\frac12)\³:(-\frac12)\²\cdot(-\frac12)\³+2^{-2}=\\\\ =(-\frac12)^{3-2+3}+\frac1{2^2}=\\\\ =(-\frac12)^4+\frac14=\\\\ =-\frac1{16}+\frac4{16}=\\\\ =\frac3{16}$