Difference between revisions of "Trigonometric identities"

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* [[Trigonometry]]
 
* [[Trigonometry]]
 
* [[Trigonometric substitution]]
 
* [[Trigonometric substitution]]
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* [http://www.sosmath.com/trig/Trig5/trig5/trig5.html Trigonometric Identities]

Revision as of 11:28, 23 June 2006

Trigonometric identities are used to manipulate trig equations in certain ways. Here is a list of them:


  • $\displaystyle \sin^2x + \cos^2x = 1$
  • $|1-e^{i\theta}|=2\sin\frac{\theta}{2}$

This page is incomplete--if you know of a trigonometric identity, add it.

See also