(2/3)^2008x1.5^2007x(-1)^2009(注:^是乘方,2/3是二分之三)

问题描述:

(2/3)^2008x1.5^2007x(-1)^2009(注:^是乘方,2/3是二分之三)

(2/3)^2008x1.5^2007x(-1)^2009=(2/3)^2008 x (3/2)^2007 x (-1)
= -(2/3)^2008 x (2/3)^(-2007)
=-2/3