x^3=3 则3log3x-logx^2(3)
问题描述：
x^3=3 则3log3x-logx^2(3)
高一数学 理科大神急~
答
3log3x-logx^2(3)
=log3(x)^3-logx^2*3/2 (3)^3/2
=log3(3)-3/2
=1-3/2
=-1/2