对数函数的加法法则

问题描述:

对数函数的加法法则

(1)log(a)(MN)=log(a)(M)+log(a)(N);
(2)log(a)(M/N)=log(a)(M)-log(a)(N);
(3)log(a)(M^n)=nlog(a)(M) (n∈R)
(4)换底公式:log(A)M=log(b)M/log(b)A (b>0且b≠1)