September 2018 2 9 Report
Bantuin ya,
Diketahui f(x) =  \frac{x}{2x + 1} , x ≠  -\frac{1}{2} . Jika  f^{-1} (x) adalah invers dari f(x), maka  f^{-1} ( 2x - 1 ) =.....
A.  \frac{-x - 2}{2x + 1} , x ≠  -\frac{1}{2}
B.  \frac{-2x + 1}{4x - 3} , x ≠ \frac{3}{4}
C.  \frac{x - 1}{2x + 1} , x ≠ -\frac{1}{2}
D.  \frac{-2x + 1}{4x + 3} , x ≠  -\frac{3}{4}
E.  \frac{x + 1}{2x - 1} , x ≠ 2

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