6. Find all points of discontinuity of f, where f is defined by
Given function is
given function is defined for every real number k
There are different cases for the given function
case(i) k > 2
Hence, given function is continuous for each value of k > 2
case(ii) k < 2
Hence, given function is continuous for each value of k < 2
case(iii) x = 2
Right hand limit at x= 2 Left hand limit at x = 2
Therefore, x = 2 is the point of discontinuity