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> 100的平方根是;10的算术平方根是;-8的立方根是。-八年级数学
100的平方根是;10的算术平方根是;-8的立方根是。-八年级数学
题目简介
100的平方根是;10的算术平方根是;-8的立方根是。-八年级数学
题目详情
100的平方根是
; 10的算术平方根是
;-8的立方根是
。
题型:填空题
难度:偏易
来源:不详
答案
±10,
,-2
分别根据平方根、算术平方根和立方根的概念直接计算即可求解.
解:100的平方根是±
=±10;
10的算术平方根是
.
-8的立方根是
=-2;
本题考查了平方根、算术平方根和立方根的概念.注意一个正数有两个平方根,它们互为相反数,正的平方根即为它的算术平方根.立方根的性质:一个正数的立方根是正数,一个负数的立方根是负数,0的立方根是0.
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题目简介
100的平方根是;10的算术平方根是;-8的立方根是。-八年级数学
题目详情
答案
解:100的平方根是±
10的算术平方根是
-8的立方根是
本题考查了平方根、算术平方根和立方根的概念.注意一个正数有两个平方根,它们互为相反数,正的平方根即为它的算术平方根.立方根的性质:一个正数的立方根是正数,一个负数的立方根是负数,0的立方根是0.