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int0^(pi/2) (dx)/(1+cotx) =...

`int_0^(pi/2) (dx)/(1+cotx) =`

A

`pi/4`

B

`pi/2`

C

`pi/3`

D

`pi`

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The correct Answer is:
A
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HIMALAYA PUBLICATION-Definite Integrals and its Application-QUESTION BANK
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