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Grade 12Trigonometry

y=x.sin(x)

Profile image of Jeevan Rao
15 Years agoGrade 12
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2 Answers

Profile image of vikas askiitian expert
ApprovedApproved Tutor Answer15 Years ago

I = xsinx dx

choose x as first function & sinx as second & then apply integration by parts ..

 

I = x(-cosx) - [(-cosx)]dx

 

I = -xcosx + sinx + C

this is the required result

 

approve if u like my ans

Profile image of Ashwin Sinha
15 Years ago

Dear Jeevan,

Treat x as 1st function & sinx as 2nd function & apply u.v method.

   So I=x(-cosx) - (-sinx)  + c

       I=-x.cosx + sinx + c                 ; c is a constant of integration.

           Hope it works!!!!!!!!

           Plz click Yes below!!!!!!   Thanks!!!!