Jika f(x) = 2x + 3 dan g(x) = 5 – 2x, fungsi komposisi (gof)(x) =
Jika f(x) = 2x + 3 dan g(x) = 5 – 2x, fungsi komposisi (gof)(x) = ….
Pembahasan:
f(x) = 2x + 3
g(x) = 5 – 2x
(gof)(x) = …. ?
(gof)(x) = g(f(x))
= g(2x + 3)
= 5 – 2(2x + 3)
= 5 – 4x – 6
(gof)(x) = -4x – 1
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