Mark the correct alternative in the following:

Let Then f(x) is continuous at x = 4 when

(ii) 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 = 4

Using R.H.L

Using L.H.L

f(x) is continuous at x = 4

a-1=b+1=a+b

b=-1 and a=1

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