Timeline for Math for fun: Finding the exact value of $\sin(10\unicode{xB0})$
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Dec 19, 2023 at 23:39 | comment | added | Caleb Stanford | @KamalSaleh Thank you for the correction! | |
| Dec 19, 2023 at 21:14 | comment | added | Kamal Saleh | @CalebStanford There are real numbers that are expressable only in terms of imaginary numbers. See here: math.stackexchange.com/questions/2156602/… | |
| Jun 6, 2023 at 14:38 | history | reopened |
CrSb0001 Leucippus peterwhy Harish Chandra Rajpoot Peter Phipps |
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| Jun 5, 2023 at 19:32 | review | Reopen votes | |||
| Jun 6, 2023 at 14:38 | |||||
| Jun 5, 2023 at 19:24 | history | closed |
John Omielan José Carlos Santos solution-verification Users with the solution-verification badge can single-handedly close solution-verification questions as duplicates and reopen them as needed. |
Duplicate of Evaluate if $\sin10°$ be expressed in real surd form? [duplicate] | |
| May 31, 2023 at 21:37 | comment | added | R. J. Mathar | The solution in terms of cubic roots is in oeis.org/A019819 . | |
| May 31, 2023 at 17:49 | vote | accept | CrSb0001 | ||
| May 31, 2023 at 17:47 | answer | added | Robert Israel | timeline score: 4 | |
| May 31, 2023 at 16:10 | review | Close votes | |||
| Jun 5, 2023 at 19:24 | |||||
| May 31, 2023 at 15:50 | comment | added | Anne Bauval | Does this answer your question? Evaluate if $\sin10°$ be expressed in real surd form? | |
| May 31, 2023 at 15:30 | comment | added | Peter | This approach needs ugly roots of non-real numbers. If we call the minimal polynomial $p$ , what about just "root of $p$ near $0.17365$" as the "exact value" ? | |
| May 31, 2023 at 15:22 | comment | added | Henry | Wolfram Alpha gives a more complicated solution to your cubic - you want the second which is about $0.173648$ | |
| May 31, 2023 at 15:13 | comment | added | CrSb0001 | @CalebStanford So my answer is correct, I just need to remove both of the uses of "i"? | |
| May 31, 2023 at 15:09 | history | edited | CrSb0001 | CC BY-SA 4.0 |
forgot an i that would make my answer more incorrect
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| May 31, 2023 at 15:03 | history | asked | CrSb0001 | CC BY-SA 4.0 |