Posted by T.Gracken on October 07, 2002 at 11:54:21:
In Reply to: Re: Correct! posted by james P Integral on October 07, 2002 at 11:47:56:
: The definite integral from 0 to 7 should be approx. 505.992? That's what i got but the answer key says its wrong?????????
is your calculator in the correct mode (radian measure)?
if yes, then did you round/approximate prior to finishing? (as that can create significant error)
I calculated the definite integral (using your boundaries and result below) to 495.18
If that is not what the answer key has, let us know and I (or someone else will recheck the work).
: : : Integral of [e^x sinx] =
: : : sin x e^x - cos x e^x - integral [ e^x sin x ]
: : : =[(sin x)(e^x)-(cos x)(e^x)]/2 + C
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