(-1)的4次方-[2-(三分之一乘0.5)]乘[3的二次方-(-2)的二次方]=?
问题描述:
(-1)的4次方-[2-(三分之一乘0.5)]乘[3的二次方-(-2)的二次方]=?
答
(-1)的4次方-[2-(三分之一乘0.5)]乘[3的二次方-(-2)的二次方]
=1-(2-1/6)x(9-4)
=1-11/6x5
=1-55/6
=-49/6