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Proving Trigonometric Identities in Precalculus

Study Guide - Learn with Videos

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Introduction to Trigonometric Identities

  • Guided course
    Simplifying Trig Expressions
    6:36
  • Guided course
    Example 1
    2:20
  • Guided course
    Example 4
    5:18

Sum and Difference Identities

  • Guided course
    Sum and Difference of Tangent
    4:47
  • Guided course
    Sum and Difference of Sine & Cosine Example 3
    2:42
  • Guided course
    Sum and Difference of Sine & Cosine
    06:14

Pythagorean Theorem & Basics of Triangles

  • Solving Right Triangles with the Pythagorean Theorem
    5:19
  • Review of Triangles
    4:42