Advanced Trigonometric Identities

Sum and Difference Formulas

Types of Problems:

  • use the sum and difference formulas to determine missing multiples of 15 degrees or pi/12 from initial unit circle 
  • rewrite expressions related to sum and difference formulas

Notes & Handouts

Practice 

Video and other resources

Multiple Angle Formulas

Types of Problems:

  • use the multiple angle formulas to derive other formulas
  • use the multiple angle formulas to evaluate trigonometric expressions
  • use the multiple angle formulas to rewrite trigonometric expressions

Notes & Handouts

Practice

​Video and other resources

Product to Sum Formulas

​Types of Problems:

  • use the product to sum formulas to derive other formulas
  • use the product to sum  formulas to evaluate trigonometric expressions
  • use the product to sum ​ formulas to rewrite trigonometric expressions

​Practice

​Video and other resources

​Notes & Handouts

Sum to Product Formulas

​​Types of Problems:

  • use the sum to product formulas to derive other formulas
  • use the sum to product  formulas to evaluate trigonometric expressions
  • use the sum to product ​ formulas to rewrite trigonometric expressions

​​Notes & Handouts

​​Practice

​​Video and other resources

Power Reducing Formulas

​Types of Problems:

  • use the power-reducing formulas to derive other formulas
  • use the power-reducing formulas to evaluate trigonometric expressions
  • use the power-reducing​ formulas to rewrite trigonometric expressions

​Practice

​Video and other resources

​Notes & Handouts

Half Angle Formulas

​​Types of Problems:

  • use the half-angle formulas to derive other formulas
  • use the half-angle formulas to evaluate trigonometric expressions
  • use the half-angle​ formulas to rewrite trigonometric expressions

​​Notes & Handouts

​​Practice

​Video and other resources