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根号2分之9等于多少
更新时间: 2020-10-25 00:00:00  

根号二分之九等于二分之三倍的根号二;

计算方法为:将根号二分之九看做根号四分之九乘以根号二,化简得二分之三倍的根号二。

根号是用来表示对一个数或一个代数式进行开方运算的符号,根号的基本运算定义有:

1、偶次根号下不能为负数,其运算结果也不为负;

2、奇次根号下可以为负数。

关键词: 根号 分之 等于 多少

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