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Given f(x) = 2* and g(x) = 2x + 1 evaluate (f?g)(o) and (g?f)(2).

User Amit Hasan
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1 Answer

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The given functions are


\begin{gathered} f(x)=2^z \\ g(x)=2x+1 \end{gathered}

First, we have to find the composite function


(f\circ g)(x)

We have to enter g(x) inside f(x), as follows


(f\circ g)(x)=2^((2x+1))

Now, we evaluate this composition when x = 0.


(f\circ g)(0)=2^((2(0)+1))=2^1=2

Therefore, the evaluation of the first case gives 2.

Now, we find the second composition, this time we have to enter f(x) inside g(x).


(g\circ f)(x)=2(2^x)+1

We evaluate the composition when x = 2.


(g\circ f)(2)=2(2^2)+1=2(4)+1=8+1=9

Therefore, the evaluation of the second case gives 9.

User Vardaan Shukla
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