log4為底2等于多少 4log以2為底6的對(duì)數(shù)?
4log以2為底6的對(duì)數(shù)?log以4為底8的對(duì)數(shù)?等于1.5,以4為底8的對(duì)數(shù)等于以log2為底8的對(duì)數(shù)除以以log2為底4的對(duì)數(shù)。以8為底的log2的對(duì)數(shù)等于3以4為底的log2的對(duì)數(shù)等于2因此為1
4log以2為底6的對(duì)數(shù)?
log以4為底8的對(duì)數(shù)?
等于1.5,以4為底8的對(duì)數(shù)等于以log2為底8的對(duì)數(shù)除以以log2為底4的對(duì)數(shù)。
以8為底的log2的對(duì)數(shù)等于3
以4為底的log2的對(duì)數(shù)等于2
因此為1.5。
log以二為底四的對(duì)數(shù)?
所以log(4,2)=log(2,2)=(1/2)×log(2,2)=1/2