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Summary
| Description |
English: This illustrates a geometric argument for the tangent half-angle formula. This argument was pointed out by Henning Makholm on the stackexchange web site in a comment at this URL: http://math.stackexchange.com/questions/113451/show-that-tan-3x-frac-sin-x-sin-3x-sin-5x-cos-x-cos-3x-cos-5 |
| Date | |
| Source | Own work |
| Author | Michael Hardy |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:18, 6 May 2013 | | 846 × 558 (10 KB) | Soap | Fixing label pointed out to me by another user |
| 00:22, 14 December 2012 |  | 846 × 558 (10 KB) | Michael Hardy | A geometric derivation of a tangent half-angle formula. | |
| 22:24, 27 February 2012 |  | 720 × 297 (7 KB) | Michael Hardy | This illustrates a geometric argument for the tangent half-angle formula. This argument was pointed out by Henning Makholm on the stackexchange web site in a comment at this URL: http://math.stackexchange.com/questions/113451/show-that-tan-3x-frac-sin-x- |
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