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Question

The value of0dxa2+x2 is


A

π2

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B

π2a

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C

πa

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D

12a

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Solution

The correct option is B

π2a


Explanation for the correct answer.

Evaluate integral.

0dxa2+x2=1atan-1xa0=1aπ2-0=π2a

Hence, option B is correct .


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