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If f(x) is continuous at x=3, where f(x...

If `f(x)` is continuous at `x=3`, where `f(x)={:{((x^(2)-9)/(x-3),", for"x!=3),(2x+k,", otherwise"):}` , then `k=`

A

0

B

3

C

-6

D

`1/6`

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The correct Answer is:
A
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