DescriptionTrig Sub Triangle 3.png	English: Geometric construction for the trigonometric substitution ${\displaystyle x=a\sec \theta }$.
Date	14 December 2005 (original upload date)
Source	Originally from en.wikibooks; description page is/was here.
Author	Original uploader was Aanidaani at en.wikibooks
Permission (Reusing this file)	Licensed under the GFDL by the author; Released under the GNU Free Documentation License.

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• 2005-12-14 23:39 Aanidaani 273×170×8 (4945 bytes) An example triangle for the secant trigonometric subsitution I made myself.