Level:
Project ID:
1003124601
Accepted:
1
Clonable:
0
Easy:
0
Let \( f(x)=\frac{2x}{x^2-1} \). Find the true statement.
\( \forall x\in(-\infty;-1)\cup(0;1)\colon f(x) < 0 \).
The domain of \( f \) is \( (-\infty;1)\cup(1;\infty) \).
\( \forall x\in(-1;1)\colon f(x) \leq 0 \).
The domain of \( f \) is \( (-\infty;-1)\cup(-1;0)\cup(0;1)\cup(1;\infty) \).