Mathematics
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Chrystomath
  • Member for 8 years, 11 months
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All Questions Answers
Score Newest
answer
17
Why are subsets of compact sets not compact?
Feb 12, 2019
answer
11
For $n \times n$ matrices $A$ and $B$, if $(A^i - B^i)x = 0$ for $i = 1, \dots,\ n$, does $(A^{n+1} - B^{n+1}) x = 0$?
Aug 13, 2020
question
10
Can non-isomorphic abelian groups have isomorphic endomorphism rings?
Jun 27, 2013
answer
9
Bounds of $1^n + 2^{n-1} + 3^{n-2} + \cdots + n^1$
Jul 14, 2020
answer
9
find maximum value of $\frac x{(x^2+1)^{\frac32}}$ with AM-GM inequality
Aug 10, 2020
answer
9
Does ONLY the ellipse have these properties?
Aug 23, 2020
question
7
Is Pythagoras' theorem about distances or areas?
Jul 15, 2017
answer
7
Topological vector space with discrete topology is the zero space
Mar 17, 2016
answer
7
Determine the minimum of $\frac{\int_0^1{x^2\left( f'\left( x \right) \right) ^2 dx}}{\int_0^1{x^2\left( f\left( x \right) \right) ^2dx}}$
Dec 11, 2020
answer
6
Product of n integers of AP is divisible by $n!$
Jan 29, 2019
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21
Why did the Merovingians and Pippinids adopt Christianity so fervently?
19
How many barons were there in feudal 10th century France?
17
Should the Great Schism of 1054 be taken to be 1204 (or 1182) instead?
10
Are there equivalents of the Domesday Book for other (French or German) duchies?
8
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