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Hello, Rohit.bastian! Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by clicking   or using four tildes (~~~~); this will automatically produce your username and the date. Finally, please do your best to always fill in the edit summary field. Below are some useful links to facilitate your involvement. Happy editing! ~DC Talk To Me 14:57, 1 May 2010 (UTC)Reply
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Trigonometric identities

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Hey,no way.....int\sin^2x is x/2-sin2x/4 So the above method wont hold good!!

But an elementary trigonometric identity shows that the two are in fact the same thing. Michael Hardy (talk) 13:38, 1 June 2010 (UTC)Reply