f(x) = -4-2x g(x) = 4/5X h(x) = 7+x Dit = (gohof)(x) = .....?

f(x) = -4-2x
g(x) = 4/5X
h(x) = 7+x

Dit = (gohof)(x) = .....?

Jawaban

➡Tentukan (hof) (x)

(h o f) (x) = h(-4 - 2x)

(h o f) (x) = 7 + (-4 - 2x)

(h o f) (x) = 3 - 2x


Maka,

(g o h o f) (x) = g(3 - 2x)

(g o h o f) (x) = 4/5(3 - 2x)

(g o h o f) (x) = 4/(15 - 10x)



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