log2底根号5/56+log2(14)-1/2log2(35)答案是-1/2

问题描述:

log2底根号5/56+log2(14)-1/2log2(35)
答案是-1/2

log2底根号5/56+log2(14)-1/2log2(35)
=log2(根号5/56*14/根号35)
=log2 根号7/28