已知有理数a.b.c满足/a-1/+(b+0.5)ˇ2+/c-2/=0,求(—3abc)×(ˉaˇ2×c)的值

问题描述:

已知有理数a.b.c满足/a-1/+(b+0.5)ˇ2+/c-2/=0,求(—3abc)×(ˉaˇ2×c)的值
/ /绝对值

/a-1/+(b+0.5)ˇ2+/c-2/=0
a-1=0,b+0.5=0,c-2=0
a=1,b=-0.5,c=2
(—3abc)×(ˉaˇ2×c)
=(-3*1*(-0.5)*2)*(-1^2*2)
=3*(-2)
=-6