Module 4 — Trig Identities and Solving Trig Equations
Use Pythagorean identities to simplify expressions, give double-angle identities dedicated live teaching time of their own, and solve trig equations over a restricted domain across basic and double-an
30 questions, easiest → hardest
30 auto-graded
Full worked solutions
Winny Score tracks mastery
Work through every question after Lesson 4. Wrong answers show the full worked solution — read it, then the next question gives you another shot at the same idea. Aim for a Winny Score of 80+.