fungsi invers f(x)=2x-3/4x-1,x #1/4

jawab
fungsi invers
f(x) = (ax + b)/(cx +d) --> f⁻¹(x)=  (dx - b)/(-cx + a)

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