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Evaluate integral xcosx dx

Asked by Arshad 8th March 2017, 7:37 PM
Answered by Expert
Answer:
begin mathsize 16px style Let space straight I space equals space integral straight x space cos space straight x space dx
Using space Integration space by space parts comma space we space get
straight I space equals space straight x space integral space cos space straight x space dx space minus space integral left parenthesis 1 right parenthesis space left parenthesis sinx right parenthesis space dx
rightwards double arrow straight I equals straight x space sinx space plus cosx space plus space straight C
end style
Answered by Expert 8th March 2017, 7:54 PM
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