kali ini kita akan membahas soal berikut nya…
Diketahui f(x) = x + 4, g(x) = 2x + 1, dan h(x) = x2 – 3x + 2. Nilai (g o h o f)(-2)!
Pembahasan:
(g o h o f)(-2) = …. ?
f(-2) = -2 + 4 = 2
(h o f)(-2) = h(f(-2))
= h(2)
= 22 – 3(2) + 2
(h o f)(-2) = 0
(g o h o f)(-2) = g(h o f)(-2)
= g(0)
= 2(0) + 1
(g o h o f)(-2) = 1
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