Trigonometry: Video Resources

Lesson 1:

 

Lesson 4: Special Triangles, Exact Values, and the Unit Circle

Excellent review of trig ratios within the unit circle. Ignore the last few minutes of this video; it begins to cover material you won't learn until Math 30.

Lesson 5: The Sine Law

Proof of the sine law.

Lesson 6: The Cosine Law

Proof of the cosine law.