Question

3. A function is defined by f (x) = 3x² + 2x – 1/x+1
x € R, X + - 1. Find the value of f(-3) +1
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Answer 1

Answer:

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

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