Question

If you can help that would be great!

The function F(x) = 1/ sqrt(1-x^2)
Indicate which are true and false

1. F(x) is never negative.
2. F(x) is never zero.
3. All negative real numbers are in the domain of (f)
4. f(x) is never positive.
5. 1 is in the domain of
6. All positive real numbers are in the domain of (f)
7. 0 is in the domain of (f)