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Precalculus with Calculus Previews, 6th Edition by Dennis G. Zill, Jacqueline M. Dewar

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In Problems 1316, find the functions f g and g f and give their domains.

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14.  f(x) = x2x + 5, g(x) = −x + 4

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In Problems 1722, find the functions f g and g f.

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18.  f(x) = x − 1, g(x) = x3

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In ...

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