log以六为底四怎么拆成lg2和lg3
问题描述:
log以六为底四怎么拆成lg2和lg3
答
log以六为底四怎么拆成lg2和lg3
log6(4)
=lg4/(lg6)
=lg2²/(lg(2*3)
=2lg2/(lg2+lg3)