Скачать или смотреть Why Trig is Hard | WildTrig: Intro to Rational Trigonometry | N J Wildberger

The usual trigonometry is overly complicated, inaccurate and logically dubious. This is the first of a series that shows you a better way---rational trigonometry! Rational trigonometry replaces distance and angle with more algebraic notions called quadrance and spread. All of those complicated formulas become much simpler, you don't need a calculator any more, and the theory extends Euclidean geometry to arbitrary fields!

What mathematics teacher or student could ask for more?
Assoc. Prof. N J Wildberger from UNSW is also the creator of the MathFoundations series, the WildLinAlg series, and a more advanced video series on Algebraic Topology. Enjoy!

Video Contents:
00:00 Introduction to the series on rational trig
01:00 Trigonometry and triangle measurements
03:14 Distance and angle: are they really fundamental?
06:13 The classical sine function and intrinsic irrationalities

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Research Gate page: https://www.researchgate.net/profile/...

Blog: http://njwildberger.com/

Online courses at openlearning.com (currently Algebraic Calculus One): https://www.openlearning.com/courses/... Please join us for an exciting new approach to one of mathematics' most important subjects!

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