Mark the correct alternative in the following:

If the function is continuous at x = 0, then the value of k is

Formula:-

(i) where and

(ii)

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

Given:-

(i)

(ii) f(x) is continuous at x = 0

Using formula (i)

K=1