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int(0)^(pi)[cotx]dx, where [.] denotes t...

`int_(0)^(pi)[cotx]dx,` where [.] denotes the greatest integer function, is equal to

A

`(pi)/2`

B

`1`

C

`-1`

D

`-(pi)/2`

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The correct Answer is:
D
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TARGET PUBLICATION-DEFINITE INTEGRALS-COMPETITIVE THINKING
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