(log(2)9+log(4)1/9)乘以(log(3)2+log(9)0.5) 括号里是底数.计算这道题.

用换底公式求log（2）25乘log（3）4乘log（5）9的值 log(2)9log(3)4等于 log(2)9×log(3)4 log(27)32 × log(64)27+log(9)2 × log(4)根号27=?log(27)32 × log(64)27+log(9)2 × log(4)根号27=? log(2)3乘log(3)4乘log(4)5乘og(5)2↓这个为准log(2)3乘log(3)4乘log(4)5乘log(5)2 1楼不的懂 log（2）9乘log（3）4等于多少?2和3在log的右下角. (log(2)9+log(4)1/9)乘以(log(3)2+log(9)0.5) 括号里是底数.计算这道题. log(10)(25/9)减log(10)(7/4)减log(10)(1/9)加1/2log(10)(49) 2^log(4)(3)加3^log(9)(1/4)加5^log(1/25)(2) (Log(4)3+log(8)3)(log(3)2+log(9)2) 顺便问下lg3乘lg4=lg（3+4）? 如何计算啊.（log底数4真数3+log底数8真数3）乘（log底数3真数2+log底数9真数2）=? 化简:(log^3 2+log^9 2)(log^4 3+log^8 3) (log(4)3+log(8)3)(log(3)2+log(9)2) 怎么个思路 (log(4)3+log(8)3)(log(3)2+log(9)8) 怎么个思路 求等式log(2)3*log(3)4*log（4)5*log(5)6*log(6)7*log(7)m=log(3)9时m的值? 求值:(log(4)3+log(8)3)×(log(3)2+log(9)2)+log(2)(2^5)¼ 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log(2)(3)} X {log(3)(4)+log(9)(2)}3.(lg2)^+1g2X 1g5 +1g50 [log(4)3+log(8)3][log(3)2+log(9)2]-log(1/2)32∧1/4过程详细点,log(4)3是log以4为底3的对数，