Find k, so that f(x) = {{:((sin kx)/(x)"...

Find k, so that `f(x) = {{:((sin kx)/(x)"," ,x != 0),(4+ x",", x = 0):}` is continous at `x = 0`

A

4

B

5

C

6

D

7

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The correct Answer is:

A

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