(-3/2mn)^-3÷(5/2m^2n^3)^-2

问题描述:

(-3/2mn)^-3÷(5/2m^2n^3)^-2

(-3/2mn)^-3÷(5/2m^2n^3)^-2
=(-3)^(-3)×(1/2)^-3×m^-3×n^-3÷5^-2÷(1/2)^-2÷m^-4÷n^-6
=50mn³/27