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Trigonometric identities

Revision as of 10:28, 23 June 2006 by IntrepidMath (talk | contribs)

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

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