February 2019 1 45 Report
1. Tentukan rumus fungsi f(x), jika diketahui:
g(x) = x + 3 dan (f°g)(x) = x² + 4
2. Diketahui fungsi komposisi (g°f)(x) = 4x² + 4x dan fungsi g(x) = x²-1. Tentukan fungs f(x-2)
3. Tentukan rumus untuk fungsi f(x), jika diketahui:
g(x) = 2x²-x+6
(g°f)(x) = x⁴-4x³-3x²+4x+5
4. Diketahui fungsi komposisi (g°f)(x) = x⁶+8x⁵+6x⁴-22x³+97x²-90x+83 dan fungsi g(x) = x²-2x+3. Tentukan fungsi f(x), jika diketahui:
a. f(1) = -8
b. f(1) = 10

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