问题
填空题
log2
|
答案
log2
×log31 25
×log51 8
=-log225•log38•log59=-1 9
•lg25 lg2
•lg8 lg3
=lg9 lg5
•2lg5 lg2
•3lg2 lg3
=-122lg3 lg5
故答案为-：12．
搜题请搜索小程序“爱下问搜题”
log2
|
log2
×log31 25
×log51 8
=-log225•log38•log59=-1 9
•lg25 lg2
•lg8 lg3
=lg9 lg5
•2lg5 lg2
•3lg2 lg3
=-122lg3 lg5
故答案为-：12．