(-4/5)2008次方*(2/3)2008次方*(5/4)2009次方*(3/2)2009次方 =
(-4/5)2008次方*(2/3)2008次方*(5/4)2009次方*(3/2)2009次方 =
日期:2016-08-13 22:33:41 人气:1
=【(-4/5)×(5/4)】的2008次方×(5/4)×【(2/3)×(3/2)】的2008次方×(3/2)
=(-1)的2008次方×1的2008次方×(5/4)×(3/2)
=1×1×(5/4)×(3/2)
=15/8