log2 5*log5 81*log3 4+ln根号e
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log25*log581*log34+ln根号elog25*log581*log34+ln根号elog25*log581*log34+ln根号e=log25*log581*log34+ln√e=log
log2 5*log5 81*log3 4+ln根号e
log2 5*log5 81*log3 4+ln根号e
log2 5*log5 81*log3 4+ln根号e
=log2 5*log5 81*log3 4+ln√e =log(2)5x 4log(5)3x2log(3)2+1/2lne =8[log(3)5/log(3)2] xlog(5)3xlog(3)2+1/2 =8log(3)5xlog(5)3+1/2 =8+1/2 =8,5.
log2 5*log5 81*log3 4+ln根号e
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
log2[log3[log5 125]]=?log2[log3[log5 125]]=?
(log2)和(log3)变成(log5)
log5[log2(log9/log3)]=?
log2^5*log3^2倍根号2*log5^9=
log2(3)*log3(5)*log5(8)（具体步骤）
化简:log2 2+log5 1-3^(2log9 5)+(3log3 5)^2+3^log3 2
log2(2)+log5(1)-log1/3(1/27)+[3^log3(5)]^2+3^-log3(2)=?
计算log3(1/9)+lg(1/10)+log2(6)-log2(3)+5^[log5(3)]
求下列各式的值 1）log2 6+log2 3 2)lg5+lg2 3)log5 3+log5 三分之一 4）log3 5-log3 15
(log3^4+log5^2)(log2^9+log2^根号3)
对数算术问题!求下列的值(1)6分之1 log2 64 +2分之1 log8 64 +log3 81(2)lg5分之1-2lg 根号0.2-log5 25*log5 2(3)log5 3分之1+2log2分之1*根号2-log3 27分之1-log5 15分之1(4)(log2 5+log4 0.2)*(log5 2 +log25 0.5)会做的帮下拉 !
高中对数log2(9)*log3(根号5）*log5（2）
运用对数换底公式化简log2(3)*log3(4)*log4(5)*log5(2),
log2 3 · log3 4 ·log4 5 ·log5 2 前面的是底数
log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?
帮忙换底化简下列:logaC*logcA .log2 3 * log3 4 * log4 5 * log5 2