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根号2等于多少
更新时间: 2020-09-27 00:00:00  

根号2约等于1、4142135623731。根号2是无理数。

根号是一个数学符号。根号是用来表示对一个数或一个代数式进行开方运算。无理数,也称为无限不循环小数,不能写作两整数之比。若将它写成小数形式,小数点之后的数字有无限多个,并且不会循环。 常见的无理数有非完全平方数的平方根和e。

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