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Alex M.

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80 In a right triangle, can $a+b=c?$ Apr 9 '16
19 Summation stuck under radical sign Jul 14 '15
18 Why is $\int_{-1}^{1} \frac{1}x \mathrm{d}x$ divergent? Jun 26 '16
15 Why is $\frac{\ln\infty}{\infty}$ equal to $\frac\infty\infty$? Nov 16 '16
12 $\int_0^\infty \frac{1}{1+x^ 9} \, dx$ Apr 2 '15
11 Why can't the second fundamental theorem of calculus be proved in just two lines? Oct 30 '16
10 Does there exist a multiplicative $f:\mathbb{Q}^+\to\mathbb{Q}^+$ such that $f\neq x\mapsto x^a$ for all $a$? Jul 19 '16
10 What is the difference between $\frac{\mathrm{d}}{\mathrm{d}x}$ and $\frac{\partial}{\partial x}$? May 31 '16
10 If the Fourier transform of a measure is zero then the measure is zero Oct 2 '15
10 Is the homomorphic image of an ideal an ideal? Mar 23 '17
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