Module 2. Answer BOTH questions.
Prove that \frac{\tan\theta \sin\theta}{1 - \cos\theta} = 1 + \frac{1}{\cos\theta}.
The mark scheme is shown once you've answered.
Practise this question\tan^2\theta - 2\tan\theta = 3 for 0 \le \theta \le 2\pi.[6 marks]4\cos\theta + 3\sin\theta = 5\sin(\theta + 0.927^c).[5 marks]4\cos\theta + 3\sin\theta = 0.[4 marks]\sin A = \frac{1}{3} and A is obtuse, calculate the value of \cos A without using a calculator.[4 marks]More practice: the rest of this paper · more Trigonometric Functions, Identities and Equations questions · all CAPE Pure Mathematics Unit 1 past papers