Trig Videos

You can use these videos for additional practice and support! Or you missed class and want to catch up with more than just written notes.

The best way to use these videos is to work the problems on your own before watching the solution. Or watch the video, then try to solve the problems yourself without resources to see if you understood.

1. Unit 1: Trigonometric functions (Sullivan Ch. 6)

   1. Angles and measure

      1. Degrees and DMS

      2. Radians

   2. Trigonometric functions

      1. Periodic functions

      2. Trigonometric functions

      3. Reciprocal trigonometric functions

   3. Unit circle

   4. Graphs of sine and cosine (we graph slightly differently in class but these get the concepts across)

      1. Graphs of sine and cosine

      2. Properties of sine and cosine graphs

      3. Sine and cosine transformations part 1

      4. Sine and cosine transformations part 2

      5. Phase shift

   5. Sinusoidal curve fitting

   6. Graphs of other trigonometric functions

      1. Tangent graphs

      2. Reciprocal function graphs

2. Unit 2: Analytic trigonometry (Sullivan Ch. 7)

   1. Inverse trigonometric functions

      1. Inverse trig video 1

      2. Inverse trig video 2

   2. Trigonometric equations

   3. Trigonometric identities

      1. Fundamental identities

      2. Even-Odd and Pythagorean identities

      3. Sum and difference identities

      4. Double-angle and half-angle identities

3. Unit 3: Applications of trigonometric functions (Sullivan Ch. 8)

   1. Law of Sines

   2. Law of Cosines

   3. Area of a triangle

4. Unit 4: Polar coordinates (Sullivan Ch. 9)

   1. Polar coordinate system

   2. Graphing polar equations

   3. Polar equations of conics - Sullivan 10.6

   4. The complex plane