问答
对数的运算公式
2024-11-23
来源:互联网转载
对数的运算公式:
1、a^log(a)(b)=b
2、log(a)(a)=1
3、log(a)(MN)=log(a)(M)+log(a)(N)
4、log(a)(M÷N)=log(a)(M)-log(a)(N)
5、log(a)(M^n)=nlog(a)(M)
6、log(a)[M^(1/n)]=log(a)(M)/n
7、logab*logba=1
8、log(a^n)(b^m)=log(e^y)(e^x)=x/y
x=ln(b^m),y=ln(a^n)
得:log(a^n)(b^m)=ln(b^m)÷ln(a^n)
TAG:对数公式