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Mathematics
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DeltaXY
  • Member for 6 years
  • Last seen more than a month ago
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Top posts
question
4
Weird arithmetics with prime numbers...
Feb 17, 2023
question
2
Calculate $C_n = \sum_{k=0}^{n} \cos\left(\dfrac{2k\pi}{2n+1}\right)$ (Python being my assistant)
Oct 13, 2019
question
2
Image of application f defined on $R_3[X]$ as : $f(P)=P′+(X^2+2)P′′(X)$ (is my solution correct)?
Sep 14, 2020
question
1
Find the antiderivative of : $\frac{x^4}{\left(x+1\right)^2\left(x^2+1\right)}$
Nov 20, 2018
question
1
First Order Differential equation with complex coefficients: $y' + \frac1{x+i}y = 0$
Dec 5, 2018
question
0
What is the Ker of application $f$ defined on $R_3 [X]$ as : $f(P) = P' + (X^2 + 2)P''(X)$ (I have an idea)?
Sep 10, 2020
question
0
How to prove that $(x+a\sin y,y+b\sin x)$ is bijective?
Nov 7, 2022