Member since April 12, 2013

lampiaodecapoeira

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lampiaodecapoeira
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Maths, Induction
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Direct proof of n^2 is even implies n is even
Mon 15 Apr, 2013 06:40 am - right. ok, thank you. But supposing I can't use this theorem? (for the fun of mathematics) (view)
Direct proof of n^2 is even implies n is even
Sun 14 Apr, 2013 02:13 am - Ok. Yes, I can use it. So what would be the next step? Thank you! (view)
Direct proof of n^2 is even implies n is even
Fri 12 Apr, 2013 07:15 pm - SO far, I have been able to come up with these steps: 1. if n^2 is even, n^2=2k (definition of an even number) 2. n*n=2k 3. n=2k/n 4. k is a multiple of n, so n= 2*n*x/n 5. n=2x Therefore,... (view)
 
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