IP AMaths Notes (Upper Sec, Year 3-4): 12) Trigonometry I

Q: What does IP AMaths Notes (Upper Sec, Year 3-4): 12) Trigonometry I cover?
A: Radian measure, special angles, and core identities for Additional Mathematics trigonometry.

Everything in upper-sec trig is built on radians and the primary identities. Memorise the exact values and practise expressing angles in coterminal forms.

Keep the full topic roadmap handy via our IP Maths tuition hub so you can jump into related drills, quizzes, or diagnostics as you move through these notes.

Key facts

• Radian definition: arc length $s = r\theta$.
• Area of sector: $A = \tfrac{1}{2} r^2 \theta$