2log3 (2)-log3(32/9)+log3(8)-3详细解答!

问题描述:

2log3 (2)-log3(32/9)+log3(8)-3详细解答!

原式=2log3 (2)-log3(2^5/3^2)+log3(2^3)-3
=2log3 (2)-5/2*log3(2)+3log3(2)-3
=5/2*log3(2)-3