This document provides two examples of solving trigonometric equations. The first example solves the equations sin(x)=2/3 and 2cos(x)+1=1 for x between 0 and 2π, finding approximate solutions of 0.6 and 3/5. The second example solves the exact equations -5tan(x)+4=0 and -3+tan(x)=0 for the angle x.

1. Non exact Solutions of Trig Eqns
Ex 1) Solve for
sin
over [0
=2
3
2cos + 1 = 1
3

2. Solve for
to 2 decimals or exactly where possible
Ex 1) sin
= 0.6
cos
2
+1= 3
5

3. Give exact solutions where possible
- 5tan + 4 = 0
+ tan
-3=0