Diketahui fungsi f(x) = x + 3, g(x) = 5 - x, dan h(x) = x2 + 2x - 1. Nilai (h o g o f)(6) =
Diketahui fungsi f(x) = x + 3, g(x) = 5 - x, dan h(x) = x² + 2x - 1. Nilai (h o g o f)(6) = ….
Jawab:
f(x) = x + 3
g(x) = 5 – x
h(x) = x² + 2x – 1
(h o g o f)(6) = …. ?
(h o g o f)(6) = h(g(f(6)))
= h(g(6 + 3))
= h(g(9))
= h(5 – 9)
= h(-4)
= (-4)² + 2(-4) – 1
= 16 – 8 – 1
= 7
Jadi nilai (h o g o f)(6) = 7
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Ingat Cita-Cita, Orang Tua, dan Keluarga
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