作业帮[log4(3)/log4(8)][log3(2)log9(2)]括号里是真数= = 我写错了 [log4（3）+log8（3）][log3（2）+log9（2）]
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/14 18:18:21
![[log4(3)/log4(8)][log3(2)log9(2)]括号里是真数= = 我写错了 [log4（3）+log8（3）][log3（2）+log9（2）]](/uploads/image/z/7171751-47-1.jpg?t=%5Blog4%283%29%2Flog4%288%29%5D%5Blog3%282%29log9%282%29%5D%E6%8B%AC%E5%8F%B7%E9%87%8C%E6%98%AF%E7%9C%9F%E6%95%B0%3D+%3D+%E6%88%91%E5%86%99%E9%94%99%E4%BA%86+%5Blog4%EF%BC%883%EF%BC%89%2Blog8%EF%BC%883%EF%BC%89%5D%5Blog3%EF%BC%882%EF%BC%89%2Blog9%EF%BC%882%EF%BC%89%5D)
[log4(3)/log4(8)][log3(2)log9(2)]括号里是真数= = 我写错了 [log4（3）+log8（3）][log3（2）+log9（2）]
[log4(3)/log4(8)][log3(2)log9(2)]
括号里是真数
= = 我写错了 [log4（3）+log8（3）][log3（2）+log9（2）]
[log4(3)/log4(8)][log3(2)log9(2)]括号里是真数= = 我写错了 [log4（3）+log8（3）][log3（2）+log9（2）]
[log4（3）+log8（3）]×[log3（2）+log9（2）]
=[1/2log2（3）+1/3log2（3）]×[log3（2）+1/2log3（2）]
=[5/6log2（3）]×[3/2log3（2）]
=5/6×3/2×log2（3）×log3（2）
=5/6×3/2×1
=5/4
〔(lg3/lg4)/(3lg2/lg4)〕*(lg2/lg3)*(lg2/2lg3)=(lg3/3lg2)* (lg2/lg3)*(lg2/2lg3)=lg2/6lg3=1/6log3(2)