问题
填空题
计算log225•log38•log59的结果是______.
答案
原式=
•lg25 lg2
•lg8 lg3
=lg9 lg5
•2lg5 lg2
•3lg2 lg3
=122lg3 lg5
故答案为12
计算log225•log38•log59的结果是______.
原式=
•lg25 lg2
•lg8 lg3
=lg9 lg5
•2lg5 lg2
•3lg2 lg3
=122lg3 lg5
故答案为12