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Proof of Cosine Rule

Author:Anthony Panontin
Topic:Cosine

New Resources

  • Reflection = 180° Rotation about a Line
  • apec
  • Triangle with 3 Right Angles
  • Exploring GeoGebra for the First Time
  • Untitled

Discover Resources

  • Coxeter- Figure 1.5C
  • Finding Determinants of a 2 x 2 matrix
  • GEOGEBRA file 22.3
  • Rotational Symmetry order 4 (make your own)
  • A contour map of f(x,y)=x^2+y^2+2xy

Discover Topics

  • Perimeter
  • Variance
  • Inequalities
  • Statistical Characteristics
  • Random Experiments
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