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- November 8th 2008, 01:24 PMyzc717stuck at the middle of the differential part
- November 8th 2008, 04:50 PMvincisonfire

- November 8th 2008, 05:08 PMvincisonfire

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See that each term at the numerator eliminates with one at the denominator. - November 8th 2008, 05:47 PMyzc717