cosecantn.
/kəʊˈsiːkənt/ Trigonometry.
The secant of the complement of a given angle. (Abbreviated cosec.)
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the world > relative properties > number > geometry > [noun] > branches of > trigonometry > functions of
right sine1581
sine1593
secant1594
tangent1594
secans1599
cosine1635
cotangent1635
cosecant1706
sec.-
1706 Phillips's New World of Words (new ed.) Co-secant.
1807 C. Hutton Course Math. (ed. 5) II. 3 The radius, cotangent, and cosecant [form] another right-angled triangle cdl.
1868 J. N. Lockyer Elem. Lessons Astron. 243 AP/ PM ..is called the cosecant of A (written cosec. A).
This entry has not yet been fully updated (first published 1893; most recently modified version published online September 2018).
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