Dik f(x)=2-3x/4x+1;x≠-¼. Jika f-¹ adalah invers fungsi f maka f-¹(x-2)

Langsung aja y

y = 2-3x / 4x+1

y (4x + 1) = 2 - 3x

4xy + 3x = 2 - y

x(4y + 3) = 2 - y

x = 2-y / 4y+3

f`¹(x) = 2-x / 4x + 3
f`¹(x-2) = (2-(x-2) / (4(x-2) + 3)
f`¹(x-2) = (4-x) / (4x-8+3)

f`¹(x-2) = 4-x / 4x-5

Semoga berguna +_+