Matematika

Pertanyaan

tlong dijawab plisss
tlong dijawab plisss

1 Jawaban

  • f(x) = (3x - 2) / (2x + 1)
    y = (3x - 2) / (2x + 1)
    y(2x + 1) = 3x - 2
    2xy + y = 3x - 2
    2xy - 3x = -y - 2
    x(2y - 3) = -y - 2
    x = (-y - 2) / (2y - 3)

    f⁻¹(x) = (-x - 2) / (2x - 3)
    f⁻¹(1) = (-1 - 2) / (2 - 3)
             = -3/-1
             = 3