判断二次根式要不要化简 如√a^2 是不是二次根式
人气:271 ℃ 时间:2020-04-10 22:38:50
解答
这个是个根式,只要有根号都可以当做根式,因为只要满足在有理数范围内,根号下的数非负就可以了,化不化简是另一回事了
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