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f⁻¹(x) adalah
y =
y(x - 2) = 4x - 3
yx - 2y = 4x - 3
yx - 4x = 2y - 3
x(y - 4) = 2y - 3
x =
f⁻¹(x) =
f⁻¹(x-1) =
f⁻¹(x-1) =
maka turunan f⁻¹(x-1) = -5/(x - 5)⁵ (benar)