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Function f(x) = (1-cos 4x)//(8x^(2)), " ...

Function `f(x) = (1-cos 4x)//(8x^(2)), " where " x != 0 ` , and f(x) = k, where x = 0 , is a continuous function at x = 0 Then : k =

A

16

B

2

C

-1

D

1

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The correct Answer is:
D
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