More Trigonometric Equations
Our author considers solving trig equations by means of identities. For example
- Using the Pythagorean identity to eliminate either sine or cosine: #3, p. 528
- Using double or half angle formulas to solve an equation: #7, 23
- Squaring both sides of an equation (with the risk of adding
additional extraneous solutions -- we need to check at the end): #13
- Using graphical techniques (intersections of the functions of both
sides): #35
- Multiple angle equations: #22
Website maintained by Andy Long.
Comments appreciated.