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
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/19 23:13:04
![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](/uploads/image/z/11574725-5-5.jpg?t=%E5%B7%B2%E7%9F%A5%E6%9C%89%E7%90%86%E6%95%B0a.b.c%E6%BB%A1%E8%B6%B3%EF%BC%8Fa%EF%BC%8D1%EF%BC%8F%EF%BC%8B%EF%BC%88b%EF%BC%8B0.5%EF%BC%89%CB%872%EF%BC%8B%EF%BC%8Fc%EF%BC%8D2%EF%BC%8F%EF%BC%9D0%2C%E6%B1%82%EF%BC%88%E2%80%943abc%EF%BC%89%C3%97%EF%BC%88%CB%89a%CB%872%C3%97c%EF%BC%89%E7%9A%84%E5%80%BC%EF%BC%8F+%EF%BC%8F%E7%BB%9D%E5%AF%B9%E5%80%BC)
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
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
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