Question

F (x) = 3x+2 / x-1 untuk x ≠ 1, maka invers fungsi f (x) adalah​

Answer 1

Explanation:

hello : F (x) = 3x+2 / x-1

let : F (x) = y.....x ?

y= 3x+2 / x-1

y(x-1) =3x+2

yx-y= 3x+2

yx-3x = y+2

x(y-3) = y+2

for y ≠ 3

x= (y+2)/(y-3)

invers fungsi f (x) : g(x) = (x+2)/(x-3) ..... x ≠ 3