Given That Fx 3x 1 And Gx

Given that f(x) = 3x – 1 and g(x) = x2 + 4, find each of the following, if it exists.
(a) (f + g) (-1)
(b) (fg) (0)
(c) (g – f) (3)
(d) (g/f) (1/3)

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