求值(log43+log83)(log32+log92)
(log43+log83)(log32+log92)
(log43+log83)(log32+log92)=
(log32+log92)•(log43+log83)= ___ .
利用对数换底公式化简:(log43+log83)(log32+log92)
运用对数的换底公式化简log23×log34×log45×log52:;(log43+log83)(log32+log9
log43乘以log92等于多少,为什么我用换底公式算出来是1/6
化简求值:log5底8*log32底25+(-3)的lg1次方-(0.25)的-1/2次方
求值:【log2(3)+log4(9)+log8(27)+log16(81)+log32(243)】—5log2(3/2
求值
求值,,
设a=30.5,b=log32,c=cos23
(log23+log89)(log34+log98+log32)=______.