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Conreu
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Physics undergrad at University of Barcelona

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6
Calculate integral $\int\limits_{0}^{\infty }xe^{-nx}\cos xdx$
May 9
5
How to obtain the period of this nonlinear differential equation?
Jun 27, 2022
5
Is there a closed formula for this sum?
Jul 2
5
How to solve $\int_0^\frac{\pi}{4} \frac{x \cos^2(2x)}{(1+\sin(2x)) (1+ \cos(2x))} dx$?
Apr 6
5
$\lim\limits_{x\to 0} \dfrac{e^x-e^{x\cos x}}{x+\sin x}$
Apr 16
4
How to compute $\displaystyle\prod_{k=0}^n \begin{pmatrix} \sqrt k & -1\\ 1 & \sqrt k \end{pmatrix}$?
Jul 2
4
Computation of $\left.\dfrac{\text d^{100}}{\text dz^{100}}\cos(z^2)\right|_{z=0}$
Dec 4, 2023
3
Can we prove that $\frac{1}{n}\sum_{k=1}^n a_k \rightarrow \frac{1}{2}$?
Mar 6
3
Maximize $f(\mathbf n)=\dfrac{N!}{\prod_{j=1}^M n_j!}$ subject to $\sum_{j=1}^M n_j=N$ and $\sum_{j=1}^M e_jn_j=E$
Mar 17
3
Inconsistency in evaluating complex integral using two different approaches
2 days ago