(log15 5)×(log15 45)
2个回答
(log15 5)×(log15 45)
=lg5/lg15 * lg45/lg15
=(lg5*lg45)/(lg15*lg15)
=(lg5*3lg5)/[（lg3+lg5）²]
相关问题
(log15 3)^2+log15 45/log5 15
若log15^5=m,则log15^3=?
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log(3)15乘以log(5)15等于多少
若log15(5)=m,m则log15(3)=?
若log15 3=m,则log15 5等于
2log5(15)-log5(18)+log5(2) 急
1/（log3 根号15）+1/（log5 根号15）等于多少
log3 5=a 则log15 75=