mohon bantuannya kakak
rumus fungsi invers untuk f(x) = (ax + b)/(cx + d) adalah f'(x) = (-dx + b)/(cx - a), maka
f(x) = (3x - 5)/(4x + 7)
f'(x) = (-7x - 5)/(4x - 3)
f'(4) = (-7(4) - 5)/(4(4) - 3)
f'(4) = (-28 - 5)/(16 - 3)
f'(4) = -33/13
f'(4) = 2 + (7/13)
f'(4) = 2,538
[answer.2.content]