AlexHeuman

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10 Questions

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13	How to determine equation for $\sum_{k=1}^n k^3$
6	$\sum _{k=1}^{n-1}k^p \lt \frac {n^{p+1}} {p+1} \lt \sum _{k=-1}^{n}k^p$
3	If $x\lt y $ for arbitrary real x and y there exists a real r $r$ such that $x \lt r \lt y$ and hence infinitely many.
3	Is this an acceptable way to do a proof?
2	If x is rational, $x\ne 0$, and $y$ irrational, prove $x+y, x-y, xy, x/y$ and $y/x$ are all irrational.

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1 Answer

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4	What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)

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0 real-analysis × 3	0 proof-writing
0 sequences-and-series	0 recreational-mathematics
0 big-list	0 proof-strategy
0 soft-question	0 education

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$Mathematics Stack Exchange$	Mathematics	171 rep	8
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