Find the value of k for which the functi...

Find the value of k for which the function f(x) `f(x)={(kx+1,xlex),(cosx,xgtpi):}` is continuous at `x = pi`

A

`-1`

B

`pi/2`

C

`-2/pi`

D

`2/pi`

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The correct Answer is:

C

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