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If int (dx)/((x^(2)+a^(2))^(2))=(1)/(ka^...

If `int (dx)/((x^(2)+a^(2))^(2))=(1)/(ka^(2)){(x)/(x^(2)+a^(2))+(1)/(a) tan^(-1). (x)/(a)}+C`. Then the value of k, is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
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