Question

Jika f(x) = 2x +1 /x + 5 maka nilai f^-1 (3)
a.-3/5
b.-2/5
c.-15
d.-14
e.3

Answer 1

Rumus Fungsi Invers
F^-1= -dx + b/cx - a
F^-1= -5x + 1/x - 2

F^-1(3) = -5(3) + 1/(3) - 2
= -14/1
= -14

Answer 2

Bismillah
jawaban+cara:

Rumus Fungsi Invers:

F^-1=-dx + b/cx - a
F^-1=-5+ 1/x - 2

F^-1(3)=-5(3) + 1/(3) - 2
=-14/1
=-14

maka jawabannya:(D)

~Good luck for All

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