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Sinus, cosinus en tangens

Wat is de geschiedenis van de sinus, cosinus en de tangens?

loes
14-4-2002

Antwoord

"The use of trigonometric functions arises from the early connection between mathematics and astronomy. Early work with spherical triangles was as important as plane triangles."

Zie History of trigonometric functions [http://www-history.mcs.st-andrews.ac.uk/history/HistTopics/Trigonometric_functions.html]

WvR
14-4-2002