已知log2=a及log 3=b,以a及b表示log2/27.
问题描述:
已知log2=a及log 3=b,以a及b表示log2/27.
答
log2/27=log2-log27=log2-log(3^3)=log2-(3*log3)=a-3b
已知log2=a及log 3=b,以a及b表示log2/27.
log2/27=log2-log27=log2-log(3^3)=log2-(3*log3)=a-3b