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If f (x) =[((1-cos kx)/(x^2) : x ne 0),...

If ` f (x) =[((1-cos kx)/(x^2) : x ne 0),(8 , x=0)]` is continues at ` x=0` , then K=……

A

`+-1`

B

`+-2`

C

` +-3 `

D

`+-4`

Text Solution

Verified by Experts

The correct Answer is:
D
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