# 12. 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 > 1

Hence, given function is continuous for each value of k > 1

case(ii)   k < 1

Hence, given function is continuous for each value of k < 1

case(iii)  x = 1

Hence, x = 1  is the point of discontinuity

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