- #1
Coco12
- 272
- 0
Homework Statement
If F(x)= 1/(1+x)
G(x)= 1/(2+x)
determine f(g(x))
Homework Equations
No equations for composition functions
The Attempt at a Solution
F(g(x)) = 1/1+ 1/(2+x)
Then do you try to eliminate the fraction in the denominator by multiplying it by (2+x)?
They said that the x values that would not work are -3,-2,-1. I understand where they got -3 and -2 but where did they get -1?