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10的x次方3请问x等于多少

更新时间: 2020-07-06 00:00:00     

将等式两边同时取对数,得到log以10为底3的对数等于x,所以x等于log以10为底3,即x等于lg3。

如果a的x次等于N,a大于0,且a不等于1,那么数x叫做以a为底N的对数。其中,a叫做对数的底数,N叫做真数。将以10为底的对数叫做常用对数,并把log以10为底N记为lgN。

关键词: 次方 请问 等于 多少

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