(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次方根的对...(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

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(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次方根的对...(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

(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次方根的对...(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
(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次方根的对...
(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次方根的对...(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
(log5√2×log4981) ÷(log251/3×log74∧3)
=[1/2 lg2×4 lg3/( lg5×2 lg7)]/[- lg3×6 lg2/(2 lg5×lg7)]
=( lg2× lg3/ lg5× lg7)/(-3 lg2× lg3/ lg5×lg7)
=-1/3

(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次方根的对数)
=1/2lg2/lg5*lg81/lg49÷(-lg3/lg25*1/3lg4/lg7)
=-3/2lg2/lg5*lg81/lg49*lg25/lg3*lg7/lg4
=-3/2*4*1/2*2*1/2*lg2/lg5*lg3/lg7*lg5/lg3*lg7/lg2
=-3

﹙log以2为底5的对数+log以4为底125的对数﹚乘以﹙log以3为底2的对数/log以根号3为底的5的对数﹚ log以4为底8的对数-log以9分之1为底3的对数-log以根号2为底4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次方根的对...(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 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4为底3为真数×log以9为底2的对数×log以1/2为底4根号32求值 (log以2为底5的对数+log以4为底5分之一的对数)x(log以5为底2的对数+log以25为底2分之一的对数) (log以2为底25的对数+log以2为底五分之一的对数)(log以5为底4的对数+log以5为底二分之一的对数) log以5为底3分之一的对数xlog以5为底4的立方根的对数分之log以5为底根号2的对数xlog以7为底9的对数 log以4为底3的对数×log以8分之一为底4倍根号32的对数. log以根号3为底2的对数为什么等于2log以3为底2的对数? a=log以根号5为底0.5的对数,b=log以0.2为底0.3的对数,c=log以根号2为底根号3的对数,比较大小 log以2为底25的对数*log以3为底16分之一的对数*log以5为底的9分之一的对数 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2为底数3的对数 乘log 以3为底4的对数.乘log以63为底,64的对数?填空题?. log以2为底3的对数*log以3为底4的对数+lg0.01-ln根号e+2的1+log以2为底3的对数的次方=? 化简根号下(log以2为底3的对数)^2-4log以2为底3的对数+4)+log以2为底1/3的对数 计算:log以4为底8的对数减log以9为底1/27的对数+log以根号2为底4的对数=?