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F(x)=7/(x+3) and g(x)=1/x find (f o g)(x)
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F(x)=7/(x+3) and g(x)=1/x find (f o g)(x)

User Cbsch
by
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1 Answer

3 votes

Answer:


(7x)/(1+3x)

Explanation:

If
f(x)=(7)/(x+3) and
g(x)=(1)/(x)

Then:


(fog)(x) = f(g(x))=(7)/(g(x)+3) =(7)/((1)/(x)+3 ) =(7)/((1)/(x)+(3x)/(x)  )=\\ = (7)/((1+3x)/(x) )=(7x)/(1+3x)

User Alberto Favaro
by
8.4k points
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