Tentukan invers dari fungsi (x) =2x-1

jawab

f(x) = 2x - 1


invers f(x) = f⁻¹(x)

y = 2x - 1
2x = y +1
x = 1/2 (y +1)

f⁻¹ (x) = 1/2 (x + 1)