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Trigonometry in Elliptic Geometry II - Universal Hyperbolic Geometry - NJ Wildberger

Trigonometry in Elliptic Geometry II - Universal Hyperbolic Geometry - NJ Wildberger

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Dual Pythagoras' theorem

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Dual Pythagoras' theorem

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Trigonometry in Elliptic Geometry II - Universal Hyperbolic Geometry - NJ Wildberger

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  1. 1 Introduction
  2. 2 Hyperbolic rational trigonometry laws
  3. 3 Polarity of elliptic triangles
  4. 4 Rewriting quadrances and spreads
  5. 5 What about the cross law?
  6. 6 Dual cross law
  7. 7 Dual Pythagoras' theorem

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