4 marksProving Simple Trigonometric Identities

CSEC Additional Mathematics · 2012 · Paper 2 · Question 4(c)

Prove the identity 1 / (sec θ + tan θ) = (1 - sin θ) / cos θ.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

4(a)(i)Calculate, giving your answer in terms of π, the area of the shape OACMN.[5 marks]
4(a)(ii)Calculate, giving your answer in terms of π, the perimeter of the shape OACMN.[5 marks]
4(b)Evaluate without using calculators, the exact value of cos(7π/12).[3 marks]

More practice: the rest of this paper · more Proving Simple Trigonometric Identities questions · all CSEC Additional Mathematics past papers