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Zarby
Group Title
Integral using parts of t^(2) sin(t)
I got it to t^2cos(t) dt+2Integral tcos(t) dt
How and why do I have to use parts again to solve this?
Thanks
 one year ago
 one year ago
Zarby Group Title
Integral using parts of t^(2) sin(t) I got it to t^2cos(t) dt+2Integral tcos(t) dt How and why do I have to use parts again to solve this? Thanks
 one year ago
 one year ago

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KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
So you've gotten to the point \[\int t^2\sin(t) dt=t^2\cos(t)+2\int t\cos(t) dt\]To finish solving this, you need to integrate \[\int t\cos(t) dt\] using parts in the same way that you did the first integral.
 one year ago

KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
You have to use parts to solve it, because it's the best way of solving it after guessing.
 one year ago

Zarby Group TitleBest ResponseYou've already chosen the best response.0
Why only integrate that side?
 one year ago

KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
What exactly do you mean?
 one year ago
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