Precalculus: Trig Equations

Discusses using the unit circle and technology to solve equations involving trig functions over specified intervals of angles.

0:00 Page 1 Equation involving the square of a trig function
3:33 Page 2 Equation involving a doubled argument
6:10 Page 3 Equation requiring a basic trig identity and factoring
10:32 Page 4 Equation requiring a double angle identity and factoring
12:44 Page 5 Equation involving a trig function with a phase shift
18:15 Page 6 Equation requiring inverse trig and technology
22:52 Page 7 Equation requiring a double angle identity, inverse trig, and technology