Paper 2 · Trigonometry
⏱ Tested in 4 exam questions since 2021
Lesson 2 of 9
Trigonometry 2.2: Introduction to unit circle
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- Find ALL angles in 0° ≤ A ≤ 360° with a given sin, cos or tan — not just one
- Find the reference angle from page 13 or the calculator, ignoring any minus sign
- Pick the two relevant quadrants from the sign of the ratio using ASTC
- Apply the quadrant formulas: ref, 180° − ref, 180° + ref, 360° − ref
Most recent exam questions
- 2025 P2 Q4(a) — deferred
- 2025 P2 Q4(c) — deferred
- 2025 P2 Q6(a)
- 2022 P2 Q5(b) — deferred
- 2021 P2 Q4(b)
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