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Let I-int(x/(cosx+x sinx))^(2)dx. (where...

Let `I-int(x/(cosx+x sinx))^(2)dx`. (where
`=(sinx-xcosx)^(m)`
`.(x sin x+cosx)^(n)+c`
c is constant of integration) then the value of `3m-2n` is

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The correct Answer is:
`5`
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