等比数列an中若log2∧a2+log2a6=4则a3*a5=16
问题描述:
等比数列an中若log2∧a2+log2a6=4则a3*a5=16
答
log2(a2)+log2(a6)=4
log2(a2·a6)=4
a2·a6=16
a3·a5=a2·a6=16