Teorema de coseno

Examples

Lessons

  1. Encuentra la longitud de ABAB:
    Law of cosines and side lengths of triangles
    1. Encuentra el ángulo EE:
      Law of cosines and angles in triangles

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      Topic Basics
      Para cualquier   ABC\triangle \;ABC,

      c2=a2+b22abcos(C)c^2=a^2+b^2-2ab\cos(C)