Mark the correct alternative in the following:

The points of discontinuity of the

function is (are)

Formula:-

(i) A function f(x) is said to be continuous at a point x=a of its domain, iff

Given:-

Now at x=1

For left hand limit

Therefore continuous at x=1

Now at x=3

For left hand limit

We have,

Therefore discontinuous at x=3

1