AP Precalculus · Unit 3
Trigonometric and polar functions
Connect periodic behavior, transformations, identities, equations, and polar rates.
Complete public questions
Four reviewed samples from this unit
01
Unit 3 · 3.1.A
3.1 Periodic Phenomena
foundational · table · no calculator02Unit 3 · 3.7.A
3.7 Sinusoidal Function Context and Data Modeling
challenging · shared stimulus · calculator required03Unit 3 · 3.8.C
3.8 The Tangent Function
moderate · equation · no calculator04Unit 3 · 3.12.C
3.12 Equivalent Representations of Trigonometric Functions
challenging · equation · no calculatorWhat AP adds
Beyond identities and exact values, AP expects periodic modeling, parameter interpretation, calculator-supported solving, and polar representations.
See how Unit 3 concepts are tested on the 2027 exam format →