Talk:Pythagorean trigonometric identity: Difference between revisions
Brews ohare (talk | contribs) →Last two sections not pertinent: new section |
Brews ohare (talk | contribs) |
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The sections "Using power series" and "Using differential equation" are germane to articles on the trig functions, but not to the Pythagorean trigonometric identity. [[User:Brews ohare|Brews ohare]] ([[User talk:Brews ohare|talk]]) 17:25, 5 June 2010 (UTC) |
The sections "Using power series" and "Using differential equation" are germane to articles on the trig functions, but not to the Pythagorean trigonometric identity. [[User:Brews ohare|Brews ohare]] ([[User talk:Brews ohare|talk]]) 17:25, 5 June 2010 (UTC) |
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These sections are OK. I added some steps and conclusions drawing the connections. [[User:Brews ohare|Brews ohare]] ([[User talk:Brews ohare|talk]]) 18:51, 8 June 2010 (UTC) |
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Revision as of 18:51, 8 June 2010
Do this subject have any content that shouldn't just be part of Trigonometric identity? If this stays as a separate article, it needs a 'lot' more explanatory text. ike9898 21:06, Nov 23, 2004 (UTC)
use of square roots in the proof is DODGY
basically the way things are shown here only holds for angles in the base region despite the fact the identity is valid for all angles Plugwash 23:36, 21 Dec 2004 (UTC)
Explanation needed
"They can be derived from (1) using simple algebra" How do the 2nd and 3rd identities come from (1)?, show me the algebra required to convert them.Bdodo1992 13:43, 27 July 2007 (UTC)
Last two sections not pertinent
The sections "Using power series" and "Using differential equation" are germane to articles on the trig functions, but not to the Pythagorean trigonometric identity. Brews ohare (talk) 17:25, 5 June 2010 (UTC)
These sections are OK. I added some steps and conclusions drawing the connections. Brews ohare (talk) 18:51, 8 June 2010 (UTC)