June 2019 1 207 Report
1. Diketahui fungsi f(x) = x + 1 dan f(x) = x² + x - 1. Komposisi fungsi (fog)(x) = ....
a. x² + 3x + 3
b. x² - 3x + 1
c. x² + 3x + 2
d. x² + 3x - 1
e. x² + 3x + 1

2. Jika f⁻¹(x) adalah invers dari fungsi f(x) = 2x - 4 / x - 3 , x ≠ 3. Maka nilai f⁻¹(4) = ....
a. 0
b. 4
c. 6
d. 8
e. 10
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