(2/3)^2006 * (-2)^2005 * (-3/4)^2007
问题描述:
(2/3)^2006 * (-2)^2005 * (-3/4)^2007
答
(2/3)^2006*(-2)^2005*(-3/4)^2007
=(2/3)^2005*(-2)^2005*(-3/4)^2005*(2/3)*(-3/4)^2
=[2/3*(-2)*(-3/4)]^2005*(2/3)*(9/16)
=1^2005*(3/8)
=3/8