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> 8的平方根是______,-8的立方根是______.-数学
8的平方根是______,-8的立方根是______.-数学
题目简介
8的平方根是______,-8的立方根是______.-数学
题目详情
8的平方根是______,-8的立方根是______.
题型:填空题
难度:中档
来源:不详
答案
∵(±2
2
)2=8,
∴8的平方根是:±2
2
;
∵(-2)3=-8,
∴-8的立方根是:-2.
故答案是:±2
2
,-2.
上一篇 :
16的平方根是()A.2B.±2C.4D.±4-数
下一篇 :
一个数的平方根等于它本身,这个
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题目简介
8的平方根是______,-8的立方根是______.-数学
题目详情
答案
∴8的平方根是:±2
∵(-2)3=-8,
∴-8的立方根是:-2.
故答案是:±2