alexcoco
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# 15 Actions

 Oct 24 awarded Popular Question Sep 25 accepted Diagonal Matrices with Zero on Diagonal Sep 25 awarded Commentator Sep 25 comment Diagonal Matrices with Zero on Diagonal Thank you. Yeah, I just wanted to make sure that these are diagonal as well as I need to prove that they are zero divisors. Sep 25 asked Diagonal Matrices with Zero on Diagonal Mar 5 awarded Autobiographer Nov 28 comment Proof by Induction: Alternating Sum of Fibonacci Numbers My question was a little more specific, don't you think? I knew it was induction, I just didn't know where I went wrong in my proof. Nov 27 comment Proof by Induction: Alternating Sum of Fibonacci Numbers It certainly helps when you try to prove something that's true x) Nov 27 comment Proof by Induction: Alternating Sum of Fibonacci Numbers Thank you. I was originally just adding 1 to the subscript instead of to the $n$. I also didn't realize that I needed to repeat both the $-f_{2k-1}$ and the $f_{2k}$ with the $+1$ to $k$. Your answer helped me find where I was going wrong! Nov 26 awarded Scholar Nov 26 accepted Proof by Induction: Alternating Sum of Fibonacci Numbers Nov 26 comment Proof by Induction: Alternating Sum of Fibonacci Numbers Thank you very much, I did not notice this Nov 26 awarded Student Nov 26 asked Proof by Induction: Alternating Sum of Fibonacci Numbers Sep 24 awarded Supporter