log2 4=2 log2 16=4 log2 64=64=2²16=2的四次方旅誉64=2的拆春段6次方log2 4=log2( 2²)=2类推森宴
(1) 2 4 6(2) 4*16=64 log2 4+log2 16=log2 64
我来告诉你吧,loga (b^n)=nloga b!