Let C denote the

Formula:-

(i)A function f: X → Y is defined to be invertible, if there exists a function g : Y → X

such that gof =I_x and fog = I_y. The function g is called the inverse of f and is denoted by f^-1

f(x)=y

f^-1(y)=x

f^-1(1) =x

f(x)=1

x³=1

x³-1=0

(x-1) (x²+x+1)=0

x=1, w,w²