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> 在下列计算中,正确的是[]A.(ab2)3=ab6B.(3xy)3=9x3y3C.(﹣2a2)2=﹣4a4D.(﹣2)﹣2=-七年级数学
在下列计算中,正确的是[]A.(ab2)3=ab6B.(3xy)3=9x3y3C.(﹣2a2)2=﹣4a4D.(﹣2)﹣2=-七年级数学
题目简介
在下列计算中,正确的是[]A.(ab2)3=ab6B.(3xy)3=9x3y3C.(﹣2a2)2=﹣4a4D.(﹣2)﹣2=-七年级数学
题目详情
在下列计算中,正确的是
[ ]
A.(ab
2
)
3
=ab
6
B.(3xy)
3
=9x
3
y
3
C.(﹣2a
2
)
2
=﹣4a
4
D.(﹣2)
﹣2
=
题型:单选题
难度:中档
来源:江苏省期末题
答案
D
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3﹣2=(),(﹣2)0=()-七年级数学
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题目简介
在下列计算中,正确的是[]A.(ab2)3=ab6B.(3xy)3=9x3y3C.(﹣2a2)2=﹣4a4D.(﹣2)﹣2=-七年级数学
题目详情
B.(3xy)3=9x3y3
C.(﹣2a2)2=﹣4a4
D.(﹣2)﹣2=
答案