计算LOG以2+根号三为底乘以(2-根号3)

问题描述:

计算LOG以2+根号三为底乘以(2-根号3)

啥叫乘以(2-根号3)? 2-根号3是真数么?

log(2+根号3)(2-根号3)=log(2+根号3)(2-根号3)+log(2+根号3)(2+根号3)-1
=log(2+根号3)[(2+根号3)(2-根号3)]-1=log(2+根号3)(1)-1=0-1=-1