Rational Trigonometry

Math Online Tom Circle

UHG39: Rational trigonometry: an overview:

(Rational number only)

This is a revolutionary approach (2005) to teach Secondary / High school Trigonometry by using purely algebra, no geometry and no picture, no sine, cosine, tangent, etc.

New concepts:
Vector as an order pair (x, y)
Quadrance = magnitude of vector
Perpendicular of 2 vectors
Parallel
Spread (angle between 2 vectors)

Amazon Book by the Dr. NJ Wildburger:

image

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1 Response to Rational Trigonometry

  1. Pingback: Video on Simplices and Simplicial Complexes | Singapore Maths Tuition

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