A:一定不等于零
B:可能不变
C:一定改变
D:一定不变
—Yes. Some of them are good and the film Transformers: The Last Knight, is excellent.
已知函数 f(x)=ln(kx)+1x−k(k>0) .
(Ⅰ)求f(x)的单调区间;
(Ⅱ)对任意 x∈1k,2k ,都有xln(kx)﹣kx+1≤mx,求m的取值范围.