Mathematics
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Jack's user avatar
Jack
  • Member for 6 years
  • Last seen more than 5 years ago
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All Questions Answers
Score Newest
answer
5
How to prove that $ \int_{0}^{\infty} x^n e^{-xt} \sin x\frac{dx}{x} =\frac{i(n-1)!}{2(1+t^2)^n}\left((t-i)^n-(t+i)^n\right)$
Feb 9, 2018
question
3
A non-linear map $f: \mathbb{R}^2 \to \mathbb{R}$ s.t. $f(av) = af(v)$ for $a \in \mathbb{R}, ~ v \in \mathbb{R}^2$
Dec 9, 2017
answer
3
$\cos(3x)\cos^2(x)$ as a linear combination of $\sin(n(x+\frac{\pi}{2}))$
Dec 16, 2017
answer
3
Common denominator example
Jan 12, 2018
question
2
Bijection between matrices in $M_{m,n}(F)$ and the linear maps $F^n \mapsto F^m$
Dec 7, 2017
answer
2
Fascinating Results of Infinite Integration by Parts
Dec 7, 2017
question
1
On the proof that the product of diagonal matrices is a diagonal matrix?
Dec 10, 2017
question
0
How many distinct matrices are there in $M_{m,n}(\mathbb{F}_2)$? How many are diagonal or upper triangular?
Dec 6, 2017
question
0
Transformation $f: \mathbb{F}_2^2 \to \mathbb{F}_2^2$ given by $f(x,y) = (x^2,y^2)$
Dec 8, 2017
question
0
Image of a vector through a linear map given by a matrix
Dec 9, 2017

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