log(4)7 * log(49)25 * log(125)64 用换底公式怎样计?
log(4)7 * log(49)25 * log(125)64 用换底公式怎样计?
用换底公式简化[log(4)3+log(8)3][log(3)2+log(9)2]
(log(2)125+log(2)25+log(8)5)*(log(125)2+log(25)4+log(5)8)
log
用换底公式求log(2)25乘log(3)4乘log(5)9的值
指数与对数计算题log√2*√3log√3*√4log√4*√5log√5*√6log√6*√7log√7*√8log√
[log(5)√2·log(49)81]/[log(25)(1/3)·log(7)三倍根号四]
log底数2真数25乘以log底数3真数4乘以log底数5真数9 怎样利用换底公式求下式的值?
化简log(2)3 * log(3)4 * log(4)7 *log(7)16
化简(log(2)(5)+log(4)(0.2))(log(5)(2)+log(25)(0.5))
log与log有关 计算题
有关对数的计算题(log(4)3+log(8)3)(log(3)2+log(9)2)=?