Wednesday, October 10, 2018

Is this proof for sumni=1i=fracn2+n2 correct?

Is this proof correct, as I feel unsure about whether or not I did that correct because the book did it differently, I wouldn't know however why my proof should be wrong.



Could you help me out?


The following statement is to be proven by induction. ni=1=n2+n2 Base case n=1 1=1+12 Induction Step nn+1 n+1i=1=ni=1+(n+1)n2+n2+(n+1)n2+n2+2(n+1)2n2+n+2n+22n2+3n+22(n+1)2+(n+1)2

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