Evaluate: int0^x[cost]dt where x in (2np...

Evaluate: `int_0^x[cost]dt where x in (2npi,(4n+1pi/2),n in N ,a n d[dot]` denotes the greatest integer function.

A

`- n pi`

B

`-(n+1)pi`

C

`-2n pi`

D

`-(2n+1)pi`

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The correct Answer is:

A

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