设log37=a,log23=b 则log27=
问题描述:
设log37=a,log23=b 则log27=
答
由log(3)7=a,log(23)=b log(3)7=log(2)7/log(2)3=a,则log(2)7=a*b
设log37=a,log23=b 则log27=
由log(3)7=a,log(23)=b log(3)7=log(2)7/log(2)3=a,则log(2)7=a*b