Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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I am really struggling with the attached problem from class today. Any help is appreciated. Thank you. 

2. How NOT to show P Q. Here is an argument that shows that if n2 is even, then n is even
Proof. If n? = 4, then n = 2. If n? = 16, then n = 4. If n² = 36, then n = 6, and so on. This
implies that whenever n? is even, then n must be even. The proof is complete.
SO
%3D
Is the proof valid? Can you say why or why not?
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Transcribed Image Text:2. How NOT to show P Q. Here is an argument that shows that if n2 is even, then n is even Proof. If n? = 4, then n = 2. If n? = 16, then n = 4. If n² = 36, then n = 6, and so on. This implies that whenever n? is even, then n must be even. The proof is complete. SO %3D Is the proof valid? Can you say why or why not?
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