The primitive of the function x|cosx| wh...

The primitive of the function `x|cosx|` when `pi/2ltxltpi` is given by

A

a) `log(secx+tanx)+c`

B

b) `-cosx-xsinx`

C

c) `xsinx-cosx`

D

d) None of these

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The correct Answer is:

B

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