(-1/3)^-2-(2/3)^2011×(-3/2)^2012=?
问题描述:
(-1/3)^-2-(2/3)^2011×(-3/2)^2012=?
答
(-1/3)^-2-(2/3)^2011×(-3/2)^2012
= (-3)^2-[(2/3)×(-3/2)]^2011×(-3/2)
=9-(-1)^2011×(-3/2)
=9-3/2
=15/2