Trigonometric Equations and Inequalities
In 3.9 an inverse trig function gave us one angle. But a trig equation usually has more solutions than that: two in every cycle, and infinitely many overall. This note (Part A) shows how to find all of them. Part B uses the same ideas to solve inequalities.
Practice
7 questions · results right after
PracticeStudy guide
9 min · 5 ideas · worked examples and the traps.
GuideIn this chapter
- 01Two Solutions per Cycle
- 02Using Inverse Trig Functions
- 03Equations That Factor
- 04When the Period Changes
- 05Key Takeaways