A trigonometric function that equals one divided by the sine of an angle, used in mathematics to solve problems involving angles and triangles.
From 'co-' (complement) and 'secant,' where secant comes from Latin 'secare' (to cut); the function relates to how a line cuts a circle.
Cosecant is one of the three reciprocal trigonometric functions, and while it seems obscure, it's incredibly useful in engineering, physics, and navigation for calculating distances and angles that would be much harder using sine alone.
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