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Mher

If you're not prepared to be wrong, you'll never come up with anything original.

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  • Member for 8 years, 1 month
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  • Last seen May 27 at 22:42

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90 $1=2$ | Continued fraction fallacy Jun 11 '13
21 Is it always true that $\det(A^2+B^2)\geq0$? Jul 8 '13
19 Does the series $\sum\frac{a_n}{a_{n+1}}\frac{1}{n}$ always diverge if $0<a_n<1$? Jun 1 '14
12 Suppose $\sum{a_n}$ converges. How do I prove that $\sum{\frac{\sqrt{a_n}}{n}}$ converges Dec 2 '14
11 Why is the differentiation of $e^x$ is $e^x$? Dec 24 '14
11 What is the maximum possible value of determinant of a matrix whose entries either 0 or 1? Jun 20 '13
11 Sylvester rank inequality: $\operatorname{rank} A + \operatorname{rank}B \leq \operatorname{rank} AB + n$ Jul 8 '13
10 Why is the differentiation of $e^x$ is $e^x$? Dec 24 '14
8 Compute the limit $\lim_{n\to\infty}\frac{1}{\log n}\sum_{k=1}^n\left(1-\frac{1}{n}\right)^k\frac{1}{k}$ Jan 23 '15
8 Finding the last two digits of a number by binomial theorem Sep 9 '13
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