Mathematics
Reinhard Meier's user avatar
Reinhard Meier's user avatar
Reinhard Meier's user avatar
Reinhard Meier
  • Member for 6 years, 8 months
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All Questions Answers
Score Newest
answer
23
About the roots of cubic polynomial
Jan 25, 2017
answer
16
Proof for infinity matrix norm
Feb 28, 2017
answer
13
Vector spaces - Proving that intersection is distributive over summation of vector spaces
Jan 25, 2017
answer
9
Show there is no $A$ s.t. $A^2 =$ $\begin{pmatrix} 0 & 1 \\ 0 & 0 \\ \end{pmatrix}$
Jan 6, 2018
answer
8
$a,b,c$ are positive reals and distinct with $a^2+b^2 -ab=c^2$. Prove $(a-c)(b-c)<0$
Sep 16, 2017
answer
8
Definiteness of a general partitioned matrix $\mathbf M=\left[\begin{matrix}\bf A & \bf B\\\bf B^\top & \bf D \\\end{matrix}\right]$
May 14, 2017
answer
6
Is there only one pair of unequal rational numbers with $n^m = m^n$?
May 3, 2017
answer
5
Why is this determinant zero ? (block matrix)
Mar 17, 2017
answer
5
Proving that R is uncountable
Mar 28, 2019
answer
5
If $a$ and $b$ are algebraic, then $\frac ab$ is algebraic
Jun 9, 2019

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