Level:
Project ID:
2000005305
Accepted:
0
Clonable:
0
Easy:
1
Find all real values of \(x\) such that the fraction \( \frac{7}{x^2+1} \) is negative.
\( \emptyset \)
\( x \in \mathbb{R} \)
\( x \in (-1;+\infty) \)
\( x \in \mathbb{R}\setminus \{ \pm 1\}\)