Recent content by paretoptimal

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    Newbie here: antiderivative for a trig function

    Beautiful, CompuChip, I should have used reverse psychology on that equation. If I see an equation like that again, I will think of the "reverse product rule". I totally see it!
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    Newbie here: antiderivative for a trig function

    Thanks for the info, l46kok! We haven't gone over integration by parts in my calc class. I should probably re-clarify my post. The whole equation was: sinx + xcosx. I anti-derived the first term as (-)cosx. It is the second which is giving me problems. Perhaps the whole equation can be...
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    Newbie here: antiderivative for a trig function

    Greetings, Sure wish I found this forum like two years ago! Anyways, as my cherry-popping post I shall seek knowledge for the fore-going: The anti-derivative for xcos(x)? I was able to do (2x)cos(x^2) = sin(x^2), but xcos(x) has boggled me. I am not seeing it. Can anyone give me...
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