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> 4的平方根是______,-27的立方根是______.-数学
4的平方根是______,-27的立方根是______.-数学
题目简介
4的平方根是______,-27的立方根是______.-数学
题目详情
4的平方根是______,-27的立方根是______.
题型:填空题
难度:中档
来源:不详
答案
∵22=4,(-2)2=4,
∴4的平方根是±2;
∵(-3)3=-27,
∴-27的立方根是-3.
故答案为±2,-3.
上一篇 :
下列命题①方程x2=x的解是x=1;
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题目简介
4的平方根是______,-27的立方根是______.-数学
题目详情
答案
∴4的平方根是±2;
∵(-3)3=-27,
∴-27的立方根是-3.
故答案为±2,-3.