- #1

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Could someone please explain to me why this is split into two separate terms?

http://img689.imageshack.us/img689/3092/unledwyx.png [Broken]

http://img689.imageshack.us/img689/3092/unledwyx.png [Broken]

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- Thread starter Ry122
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- #1

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http://img689.imageshack.us/img689/3092/unledwyx.png [Broken]

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- #2

Mark44

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Because it's quite a bit simpler to integrate t sin(at) than to integrate (6 - 3t)sin(at). In both cases you need to use integration by parts, but the simpler integrand makes the process easier.

http://img689.imageshack.us/img689/3092/unledwyx.png [Broken]

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