Double-Angle Formulae. UPSEE 2017 Solved Sample Paper Set-1. Half-Angle Formulas. Law of Sines. Let a, b, c be the sides of the triangle and A be the angle opposite to side a, ...

Solve trigonometric equations in Higher Maths using the double angle formulae, wave function, addition formulae and trig identities. Back to top. More on Quizzes - Maths Higher.