Question

log5 3+log5 1/3=?

Answer 1

对数的运算性质

如果a>0,a≠1,M>0,N>0,那么

(1)loga(MN)=logaM+logaN.

(2)logaM/N=logaM-logaN.

(3)logaM^n=nlogaM (n∈R).

＝＝＝＝＝＝＝

log(5)3+lgo(5)1/3=log(5)(3×1/3)=log(5)1=0