Nilai f⁻¹(-2) = ….
Pembahasan:
Diketahui:
f(x) = 9x + 4 ; x ≠ ⅚
6x – 5
Maka, f'(x) = 5x + 4
6x – 9
Kaprikornus,
f'(–2) = 5(–2) + 4
6(–2) – 9
= –10 + 4
–12 – 9
= –6
–21
= 6
21