For example,

F(x)= 1/x, and the domain x is not equal to zero.

F(-x)= 1/(-x), and the domain requirement (-x) is not equal to zero.

F (x 2+x) = 1/(x 2+x), and the domain requirement (x 2+x) is not equal to zero.

For example, the first question,

F(x) domain,

F(-x) To apply the above fields to the (-x) in parentheses,

sulphur dioxide

The domain of g(x) is the intersection of the above two domains.