IP AMaths Notes (Upper Sec, Year 3-4): 13) Trigonometry II

Q: What does IP AMaths Notes (Upper Sec, Year 3-4): 13) Trigonometry II cover?
A: Trig equations, compound angles, and auxiliary angle method for IP AMaths.

With radian fluency in hand, solve trig equations by mapping solutions across quadrants and applying compound-angle identities.

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.

Identities to deploy

• Compound: $\sin(A \pm B) = \sin A \cos B \pm \cos A \sin B$.
• Compound: $\cos(A \pm B) = \cos A \cos B \mp \sin A \sin B$