Trigonometry

Basic Trigonometry
Definitions
Using Tan to find angle
Using Tan to find side
Using Sine to find angle
Using Sine to find side
Using Cos to find angle
Using Cos to find side
Which ratio?
Finding the hypotenuse

Formulae
  • Trig refresher

  • sec, cosec & cot

  • Compound formulae

  • Double Angle

  • Half Angle

  • Product formulae

  • Multiple Angle


    • Algebra - Solving Trig equations


    Area of a triangle, SineRule, Cosine Rule
    Area of a triangle - derivation
  • Area of a triangle - example Example

    • Sine Rule - derivation
  • Sine Rule- Example

    • Cosine Rule - derivation
  • Cosine Rule- Examples

    • Sine & Cosine Rule- refresher
    Which rule to use ? SSS,etc

    Compound Formulae
  • Deriving compound angle
    • (Higher)
  • Compound angle formulae - Examples



    • Trig Families
  • Amplitude and Period definition
  • Click to see which quadrant an angle lies in.
    Excel (125 KB)
  • See how trig graphs are affected by a change in amplitude or phase angle.
    • Excel (1737 KB)

    Radians
  • Radians

  • Converting degrees to Radians
  • Exact values Radians & Degrees

  • Using exact values : Radians & Degrees

  • Conversion table




    • The Wave Function
  • Adding two waves

  • Subtracting two waves

  • Express in the form cos(x+a)

  • Express in the form sin(x-a)

  • Express in the form sin(x+a)

  • Multiple Angles

  • Maximum / Miminum Value

  • Sketching graphs

  • Solving equations

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