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分母中有根号如何化简
更新时间: 2020-10-25 00:00:00  

分母有理化。分两种:第一种:分母中含有一个根号。分子分母同时乘以相等的根号,促成根号的平方,去掉根号。第二种:分母中含有两个根号。分子分母同时乘以可以促成平方差公式的式子。

关键词: 分母 根号 如何

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