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If int(0)^(k)(dx)/(2+18x^(2))=(pi)/(24),...

If `int_(0)^(k)(dx)/(2+18x^(2))=(pi)/(24)`, then the value of k is

A

3

B

4

C

`(1)/(3)`

D

`(1)/(4)`

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Verified by Experts

The correct Answer is:
C
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