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This question is really hard please solve it ):
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3 votes
This question is really hard please solve it ):

This question is really hard please solve it ):-example-1
User Anton Shevtsov
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1 Answer

3 votes
(gof)(x) = g(f(x)) = 1/(x+3)^2

so if f(x) = x+3 and g(x) = 1/x^2
then

g(f(x)) = 1/(x+3)^2 ....matching given info above...(gof)(x) = g(f(x)) = 1/(x+3)^2

answer
C. f(x) = x+3 and g(x) = 1/x^2

User Pita
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