Students practice the 3.9 Evaluate Inverse Trigonometric Functions and Composite Trig Functions lesson from AP® Precalculus with this fun, NO PREP, self-checking digital Mystery Picture Reveal Activity! Printable worksheet included for flexibility in your classroom. ACTIVITY SKILLS:Evaluate Inverse Trig Functions for sine, cosine, and tangent.Evaluate Composite Trig Functions with Inverse Trig Functions on the Unit CircleInverse Trig Functions include restricted domain for sine to [-π/2,π/2]