jika f(x)=2x-5,makaf-¹(1)

F(x) = y 2x-5 = y 2x = y+5 x = y+5/2 F^-1 (x) = x+5/2 F^-1 (1) = 1+5/2 F^-1(1) 6/2 F^-1 = 3

Mapel : Matematika
Kelas : X SMA
Bab : Fungsi Komposisi dan Fungsi Invers

Pembahasan :
F(x) = 2x - 5

F(x) = y
2x - 5 = y
2x = y + 5
x = (y + 5)/2
F^-1(x) = (x + 5)/2
F^-1(1) = (1 + 5)/2
F^-1(1) = 6/2
F^-1(1) = 3