f (x) = ((e^(kx)-1)(sin kx))/(4x^(2)) , ...

` f (x) = ((e^(kx)-1)(sin kx))/(4x^(2)) , x ne 0, f(0) = 9 ,` is continuous at x = 0 , then k =

A

`pm 2`

B

`pm 6`

C

`pm 4`

D

`pm 8`

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The correct Answer is:

B

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