Mark the correct alternative in the following:

If is continuous at x = π/2, then k =

Formula:- (i) and

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

(iii) , where ,

Given:-

Function f(x) is continuous at x=

Using substitution method

If , then

Using formula (iii)

Using standard limit formula (i)

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