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Derivative

If f: R → R, ...

Question

If f : R → R, g : R → are given by f(x) = (x + 1)² and g(x) = x² + 1, then write the value of fog (−3).

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Solution

$(f o g) (- 3) = f (g (- 3)) = f ({(- 3)}^{2} + 1) = f (10) = {(10 + 1)}^{2} = 121$

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