Let f:{1,2,3}--- {a,b,c} be a function defined by f(1)= a, f(2)= b and f(3)= c Show that f is - Maths - Relations and Functions

Question

Let f:{1,2,3}--->{a,b,c} be a function defined by f(1)= a, f(2)=
b and f(3)= c Show that f is invertible and find f^-1 Also show
that (f^-1)^-1= f

Arnab Gupta · Accepted Answer

Let f:{1,2,3}--->{a,b,c} be a function defined by f(1)= a, f(2)= b and f(3)= c. Show that f is invertible and find f^-1 . Also show that (f^-1)^-1= f.