Tentukan invers f⁻¹ fungsi f(x) = 2x+3/4x+5 bingung caranya bantu ya

Langsung aja y

f(x) = 2x+3 / 4x+5

y (4x+5) = 2x + 3

4xy + 5y = 2x + 3

4xy – 2x = 3 – 5y

x(4y – 2) = 3 – 5y

x = (3 – 5y) / (4y – 2)

f`¹(x) = (3 – 5x) / (4x – 2)

Semoga berguna +_+

Bab Fungsi
Matematika SMA Kelas XI

f(x) = (ax + b) / (cx + d)
f⁻¹ (x) = (-dx + b) / (cx – a)

f(x) = (2x + 3) / (4x + 5)
f⁻¹ (x) = (-5x + 3) / (4x – 2)