# Formulae on Sets, Relations and Functions

Study Material on Sets, Relations and Functions

### Check out your Daily Challenge

### Important Formula #1

### Important Formula #2

### Important Formula #3

### Important Formula #4

### Important Formula #5

If two functions f and g satisfy f (g(x)) = x for every x in the domain of g, and g(f(x)) =x for every x in the domain of f, we say that*f is the inverse of g*and

*g is the inverse of f*.

**Preparation Tip for You!**

Read the Formulae? Now why don't you try solving a few questions in the Practice Lounge