神马作文网如果log以3为底[log以4为底（log以5为底的a次方）]等于log以4为底[log以3为底（log以5为底的b次方
来源：学生作业帮 编辑：神马作文网作业帮 分类：数学作业 时间：2024/11/11 22:04:17
如果log以3为底[log以4为底（log以5为底的a次方）]等于log以4为底[log以3为底（log以5为底的b次方）]等于0,则b 分之a的值为?
![如果log以3为底[log以4为底（log以5为底的a次方）]等于log以4为底[log以3为底（log以5为底的b次方](/uploads/image/z/14956649-17-9.jpg?t=%E5%A6%82%E6%9E%9Clog%E4%BB%A53%E4%B8%BA%E5%BA%95%5Blog%E4%BB%A54%E4%B8%BA%E5%BA%95%EF%BC%88log%E4%BB%A55%E4%B8%BA%E5%BA%95%E7%9A%84a%E6%AC%A1%E6%96%B9%EF%BC%89%5D%E7%AD%89%E4%BA%8Elog%E4%BB%A54%E4%B8%BA%E5%BA%95%5Blog%E4%BB%A53%E4%B8%BA%E5%BA%95%EF%BC%88log%E4%BB%A55%E4%B8%BA%E5%BA%95%E7%9A%84b%E6%AC%A1%E6%96%B9)
log_3[log_4(log_5(a))] = 0 (1)
log_4[log_3(log_5(b))] = 0 (2)
(1) => log_4(log_5(a)) = 1
=> log_5(a) = 4
=> a = 5^4
(2) => log_3(log_5(b)) = 1
=> log_5(b) = 3
=> b = 5^3
所以,a/b = 5
式中,log_5(a)表示以5为底的对数,5^3表示5 的三次方
log_4[log_3(log_5(b))] = 0 (2)
(1) => log_4(log_5(a)) = 1
=> log_5(a) = 4
=> a = 5^4
(2) => log_3(log_5(b)) = 1
=> log_5(b) = 3
=> b = 5^3
所以,a/b = 5
式中,log_5(a)表示以5为底的对数,5^3表示5 的三次方
如果log以3为底[log以4为底（log以5为底的a次方）]等于log以4为底[log以3为底（log以5为底的b次方
log以2为底的（log以3为底的（log以4为底的x))=log以3为底的（log以4为底的（log以2为底的y))=
LOG以9为底的3次方等于多少
计算：（log以4为底3的对数+log以8为底3的对数）（log以3为底2的对数+log以9为底2的对数）- log以½
log以5为底3的对数×log以27为底125的对数
log以3为底12+log以9为底36-log以27为底512的对数
计算(log以2为底的3+log以4为底的9+log以8为底的7+……+log以2^n为底的3^n)*log以9为底^n
log以2为底25的对数乘以log以3为底4的对数乘以log以5为底9的对数
log以2为底25的对数乘log以3为底4的对数乘log以5为底9的对数=?
log以2为底25的对数+log以3为底4的对数+log以5为底9的对数
log以4为底数27的对数乘log以5为底8的对数乘log以3为底25的对数
（log以5为底根号2的对数×log以49为底81的对数）÷（log以25为底1/3的对数×log以7为底4的3次方根的