Math  /  Algebra

Question(b) f(x)=x+3f(x)=-x+3 g(x)=x+3f(g(x))=g(f(x))=\begin{array}{l} g(x)=x+3 \\ f(g(x))=\square \\ g(f(x))=\square \end{array} ff and gg are inverses of each other ff and gg are not inverses of each other

Studdy Solution
Determine if f f and g g are inverses:
For f f and g g to be inverses, both f(g(x))=x f(g(x)) = x and g(f(x))=x g(f(x)) = x must hold true.
From STEP_1, we found f(g(x))=x f(g(x)) = -x , which is not equal to x x .
From STEP_2, we found g(f(x))=x+6 g(f(x)) = -x + 6 , which is also not equal to x x .
Since neither f(g(x))=x f(g(x)) = x nor g(f(x))=x g(f(x)) = x , f f and g g are not inverses of each other.
The compositions are: f(g(x))=x f(g(x)) = -x g(f(x))=x+6 g(f(x)) = -x + 6
Conclusion: f f and g g are not inverses of each other.

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