Timeline for Fundamental Examples
Current License: CC BY-SA 3.0
3 events
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Apr 18, 2011 at 18:44 | comment | added | Thierry Zell | It's also a nice way to prove the trigonometric change of variable formulas with $t=\tan(\alpha/2)$. When I saw those in high-school, I believe we used brute force instead! | |
Apr 18, 2011 at 18:03 | history | edited | Thierry Zell | CC BY-SA 3.0 |
fixed an error in the formula
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Jul 7, 2010 at 22:38 | history | answered | David Corwin | CC BY-SA 2.5 |