Timeline for Evaluating $\int_{-\infty}^\infty\frac{\cos(2x)}{x^2+4}\:\mathrm{d}x$
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 15, 2021 at 7:40 | answer | added | Ujjwal | timeline score: 1 | |
| Jul 14, 2020 at 1:46 | vote | accept | Mathsisfun | ||
| Jul 13, 2020 at 17:42 | answer | added | Dominik Kutek | timeline score: 1 | |
| Jul 13, 2020 at 16:46 | answer | added | Luis Sierra | timeline score: 8 | |
| Jul 13, 2020 at 16:30 | comment | added | Eeyore Ho | $ I=\Re \int_{-\infty}^{\infty}\frac{e^{2ix}}{x^2+4} \,dx $ | |
| Jul 13, 2020 at 14:48 | comment | added | Mathsisfun | @Mark I'm not so familiar with it but I'll have a look at it and learn more about it. | |
| Jul 13, 2020 at 14:46 | comment | added | Mark | The easiest way is using the residue theorem from complex analysis. Are you familiar with it? The answer is indeed $\frac{\pi}{2e^4}$. | |
| Jul 13, 2020 at 14:45 | history | edited | Mathsisfun | CC BY-SA 4.0 | added 48 characters in body |
| Jul 13, 2020 at 14:45 | comment | added | Jared | This is a stab in the dark but my guess is that this is a Cauchy Theorem problem (complex analysis). | |
| Jul 13, 2020 at 14:42 | history | asked | Mathsisfun | CC BY-SA 4.0 |