Jika f(x) = 2 – x, g(x)

Jika f(x) = 2 – x, g(x) = x2 + 4x – 5, dan h(x) = 3x – 2, nilai (h o g o f)(3) = ….
A.26
B.15
C.0
D.-15
E.-26
Pembahasan:
f(x) = 2 – x
g(x) = x2 + 4x – 5
h(x) = 3x – 2
(h o g o f)(3)
= (h o g)(2 – 3)
= (h o g)(-1)
= h((-1)2 + 4(-1) – 5)
= h(-8)
= 3(-8) – 2
= -24 – 2
= -26
Jawaban: E
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