2log3 (2)-log3(32/9)+log3(8)-3详细解答!_数学解答

2log3 (2)-log3(32/9)+log3(8)-3详细解答!

人气：416 ℃　时间：2020-04-01 20:37:58

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