1.22.08 harder trig equations 1
TRANSCRIPT
More Complicated Trigonometric Equations
Recall the Steps for Solving a Trigonometric Equation:
1. Isolate the trig. function
2. Use an inverse trig. function to find one solution.
3. Use the unit circle to find a second solution (usually).
4. Use the periodicity of the function to state the general solution to the equation.
0sincossin2 :Ex
Sometimes step 1 can be more difficult…
0sincossin2 :Ex
01cos2cos :Ex 2
022
cos72
6cos :Ex 2