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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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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.Could someone please explain to me why this is split into two separate terms?
http://img689.imageshack.us/img689/3092/unledwyx.png [Broken]