Jika f(x) = 2x/x – 3, x ≠ 3 17/01/2023 by rizalhadizan maka f⁻¹(x) = 3x/x – 2 Pembahasan: f(x) = ax + b ⇒ f⁻¹(x) = –dx + b cx + d cx – a f(x) = 2x ⇒ f⁻¹(x) = 3x x – 3 x – 2 Jika deret geometri tak terhingga 5 + 45/4 + 135/16 + ...