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Fred
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View all questions and answers
answer
64
Possible definitions of exponential function
Nov 7, 2018
answer
41
How to prove that if the determinant of the matrix is zero then at least one eigenvalue must be zero?
Jun 25, 2018
answer
37
What is an intuitive approach to solving $\lim_{n\rightarrow\infty}\biggl(\frac{1}{n^2} + \frac{2}{n^2} + \frac{3}{n^2}+\dots+\frac{n}{n^2}\biggr)$?
Jul 27, 2017
answer
33
Do $AB$ and $BA$ have the same eigenvalues?
Nov 25, 2016
answer
21
If two matrices have the same determinant, are they similar?
Dec 11, 2017
answer
20
Does the logarithm satisfy any differential equation?
Jul 26, 2019
answer
18
Does every linear operator have a minimal polynomial?
Dec 16, 2016
answer
14
Proving $\operatorname{rank}A =\operatorname{rank}B$ when $AB = 2A + 3B$
Jul 18, 2019
answer
14
Can we prove "If $A = B$ then $C=D$" by assuming $C=D$ and showing $A=B$?
Oct 25, 2016
answer
13
Calculating value of function at middle of interval, given integrals of the function on the interval.
Jun 9, 2020