Question

Prove the following identities [6 marks]
cos 𝑥 cot 𝑥 =
1
𝑠𝑖𝑛𝑥 − 𝑠𝑖𝑛�

Answer 1

cos x * cos x/sin x = cos^2 x /sinx
= (1-sin^2 x) / sin x
=(1/sin x) - sin x