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二次根式如何去分母
更新时间: 2020-10-31 00:00:00  

二次根式去分母的方法是分子、分母同乘以一个式子即可,一般地,形如√a的代数式叫做二次根式,当a≥0时,√a表示a的算术平方根,当a小于0时,√a的值为纯虚数。

根式是数学的基本概念之一,是一种含有开方(求方根)运算的代数式,即含有根号的表达式。按根指数是偶数还是奇数,根式分别称为偶次根式或奇次根式。

关键词: 根式 如何 分母

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