化简log2[log3(log5 125)]……1.化简log2[log3(log5 125)]2.5log2(log9 81)3.log9 4 +log3 8 /log1/3 164.求值(lg2)^2+两个2*lg5+lg503.log9 4 +log3 8除以log三分之一 16 4.求值(lg2)平方+lg2乘以lg5+lg50

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化简log2[log3(log5 125)]……1.化简log2[log3(log5 125)]2.5log2(log9 81)3.log9 4 +log3 8 /log1/3 164.求值(lg2)^2+两个2*lg5+lg503.log9 4 +log3 8除以log三分之一 16 4.求值(lg2)平方+lg2乘以lg5+lg50

化简log2[log3(log5 125)]……1.化简log2[log3(log5 125)]2.5log2(log9 81)3.log9 4 +log3 8 /log1/3 164.求值(lg2)^2+两个2*lg5+lg503.log9 4 +log3 8除以log三分之一 16 4.求值(lg2)平方+lg2乘以lg5+lg50
化简log2[log3(log5 125)]……
1.化简log2[log3(log5 125)]
2.5log2(log9 81)
3.log9 4 +log3 8 /log1/3 16
4.求值(lg2)^2+两个2*lg5+lg50
3.log9 4 +log3 8除以log三分之一 16
4.求值(lg2)平方+lg2乘以lg5+lg50

化简log2[log3(log5 125)]……1.化简log2[log3(log5 125)]2.5log2(log9 81)3.log9 4 +log3 8 /log1/3 164.求值(lg2)^2+两个2*lg5+lg503.log9 4 +log3 8除以log三分之一 16 4.求值(lg2)平方+lg2乘以lg5+lg50
1、log5 125=3,原式=0
2、log9 81=2,原式=5
3、4、题目看不懂...

log2[log3(log5 125)] =log2(log3 3)=log2 1=0
5log2(log9 81)=5log2 2=5
log9 4 +log3 8 /log1/3 16=log3 2+3log3 2/-4log3 2=log3 2-3/4
两个2*lg5是什么意思?

log2[log3[log5 125]]=?log2[log3[log5 125]]=? (log2)和(log3)变成(log5) log5[log2(log9/log3)]=? 化简:log2 2+log5 1-3^(2log9 5)+(3log3 5)^2+3^log3 2 计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15 化简log2[log3(log5 125)]……1.化简log2[log3(log5 125)]2.5log2(log9 81)3.log9 4 +log3 8 /log1/3 164.求值(lg2)^2+两个2*lg5+lg503.log9 4 +log3 8除以log三分之一 16 4.求值(lg2)平方+lg2乘以lg5+lg50 (log3^4+log5^2)(log2^9+log2^根号3) 求log2(1/125)·log3(1/32)·log5(1/3) 化简log3(5)+log5(3)-log3(15)*log5(15) 高中数学题log2^25 * log3^4 * log5^9 log2^25*log3^2倍根号2*log5^9= log2^5*log3^2倍根号2*log5^9= log3 25×log2 27×log5 2^-3=_____ log2(a)=log3(b)=log5(c) log5［log2（log3 9）］= log2 5*log5 81*log3 4+ln根号e 1/log5^7+1/log3^7+1/log2^7 ,求值 若log2(x)=log3(y)=log5(z)