This site from the University of Saint Andrews provides an historical look at the origins of trig functions. This site ties together mathematics and history from Hipparchus to Ptolemy to Lambert.

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CCSS: Adaptable

Concepts

cosecant, cosine, cotangent, euler, secant, sine, tangent, trigonometric functions

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Additional Tags

cos, cot, csc, de moivre, history mathematics, math history, mathematicians, menelaus theorem, sec, sin, tan, trig functions, mactutor history of mathematics: trigonometric functions, university of st. andrews, trigonometric function, trigonometric and inverse trigonometric functions

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Classroom Considerations

Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
The intended use for this resource is Instructional

Common Core

View 39,638 other resources for 9th - 10th Grade Math