Versedsine and Coversedsine in Circle

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The coversedsine is equal to 1 minus the sine. In this figure, AE is parallel to OB; hence, EO = AC = sine of angle AOC, when radius OA - 1. Therefore, Coversedsine = 1 - sine = 1 - AC/OA = 1 - AC = 1 - EO = ER, when OA = 1.

Keywords

Sine, trigonometry, cosine, trigonometric circle, versedsine, coversedsine

Galleries

Trigonometry: Circles

Source

International Correspondence Schools I.C.S. Reference Library Mathematics (Scranton: International Textbook Company, 1905) Geometry & Trigonometry Pg. 27

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