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Old 04-23-2008, 10:42 PM   #13
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Join Date: Nov 2007
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^ Thanks for bringing us back on topic. This reminds me, the questions like 'how many ways are there to form an integer with 2 in this place, 3 in this place... blah blah' really confuse me.

Any trick to that?
I've read how to do them so many times, and I keep making the same mistake...
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