If the function f(x), defined below is continuous at x = 0, find the value of k:

we have to find the value of 'k'

Given:

f(x) is continuous at x = 0 & f(0) = k

If f(x) is be continuous at x = 0,then,

f(0)=f(0) + = f(0)

LHL = f(0) =

cos(0) = 1

(1)2

1

RHL = f(0) + =

1

Since , f(x) is continuous at x = 0 & f(0) = k

And also , f(0) = f(0) + = f(0)

So ,k = 1

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