Diketahui g(×) = 2×-3 dan (g°f)(×) = 2xkuadrat2-6×-1, maka f(×)=…
Matematika
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Pertanyaan
Diketahui g(×) = 2×-3 dan (g°f)(×) = 2xkuadrat2-6×-1, maka f(×)=…
1 Jawaban
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1. Jawaban whongaliem
g (x) = 2x - 3 ; (g o f) (x) = 2x² - 6x - 1
(g o f) (x) = g (f (x))
2x² - 6x - 1 = 2 .f (x) - 3
2. f(x) = 2x² - 6x - 1 + 3
2. f(x) = 2x²- 6x + 2 ...... bagi denga 2
f (x) = x² - 3x + 1