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- Nov 8th 2008, 02:24 PMyzc717stuck at the middle of the differential part
- Nov 8th 2008, 05:50 PMvincisonfire

- Nov 8th 2008, 06:08 PMvincisonfire

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See that each term at the numerator eliminates with one at the denominator. - Nov 8th 2008, 06:47 PMyzc717