- Jim, would you mind out of the bathroom?
- Sorry. It won't be long.
A:to come
B:come
C:came
D:coming
(Ⅰ)求不等式﹣2<f(x)<0的解集A;
(Ⅱ)若m,n∈A,证明:|1﹣4mn|>2|m﹣n|.