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135 Answers

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11	Prove that $ 1 + \dfrac{1}{2} + \dfrac{1}{3} + \cdots + \dfrac{1}{n} = \mathcal{O}(\log(n)) $.
9	prove: if n is even, then n+1 is not even
7	Can every proof by contradiction also be shown without contradiction?
6	Why aren't the graphs of $\sin(\arcsin x)$ and $\arcsin(\sin x)$ the same?
5	Proving $x^x+y^y\ge\sqrt2$ when $x,y\in \mathbb R^+$ and $x+y=1$

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3,400 Reputation

+15	Positive semidefinite Matrix examples query
+5	Proving : Every infinite subset of countable set is countable
+10	Sufficient statistic and MLE problem
+15	Dynamic Programming Trouble, Optimizing time

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57 Questions

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8	Ratio of time reading and solving
7	Should one imagine diagrams/figures when working?
7	Motivation for Topology study in Real Analysis
5	Recursion for Finding Expectation (Somewhat Lengthy)
5	What should I be doing in a grad level math course?

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86 Tags

32 linear-algebra × 35	16 proof-writing × 10
30 calculus × 22	13 algebra-precalculus × 9
28 homework × 26	12 computer-science × 2
20 matrices × 18	12 asymptotics × 2
17 trigonometry × 6	11 probability × 37

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