Answer:
Listed below
Explanation:
This is a function composition excercise. The idea is to sustitute the value of G(x) in the X's value of the other function.
a)
and
So we replace g(x) on the X of the f(x) function and we get:

b) We do the same on this excercise:
and
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We replace and we get:
c) And the same on this one:
and

We replace and we get:

d) Exactly the same on this excercise:
and

We replace:
