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Trigonometric Functions and Their Properties: Study Notes for Precalculus

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Trigonometric Functions on Right Triangles

  • Guided course
    Introduction to Inverse Trig Functions
    4:28
  • Guided course
    Fundamental Trigonometric Identities
    5:32
  • Guided course
    Introduction to Trigonometric Functions
    6:04

Special Right Triangles

  • Guided course
    45-45-90 Triangles
    04:39
  • Guided course
    Common Trig Functions For 30-60-90 Triangles
    6:24
  • Guided course
    30-60-90 Triangles
    5:35

Cofunctions of Complementary Angles

  • Guided course
    Using Cofunction Identities to Solve Equations
    4:42
  • Guided course
    Cofunction Identities
    6:30

Common Values of Sine, Cosine, & Tangent

  • Guided course
    Example 1
    6:04
  • Guided course
    Sine, Cosine, & Tangent of 30°, 45°, & 60°
    5:08

Reference Angles

  • Guided course
    Reference Angles on the Unit Circle
    5:31
  • Guided course
    Coterminal Angles on the Unit Circle
    3:47
  • Guided course
    Example 1
    3:03