solve que 11
3log45+4log53-5log43-3log54
=(5log43)+(3log54)-5log43-3log54
=0
The things in thts came from an identity of logarithm:
mlogxn=nlogxm
=(5log43)+(3log54)-5log43-3log54
=0
The things in thts came from an identity of logarithm:
mlogxn=nlogxm