CAPE Pure Mathematics Unit 1 · May/June 2011 · Paper 1 · Question Q21

\frac{1}{\text{cosec}^2 x} \equiv

1. (A)\text{arc } \cos(x)^2
2. (B)(\text{arc } \cos x)^2
3. (C)\frac{\tan^2 x}{\sec^2 x}
4. (D)\frac{\cot^2 x}{\text{cosec}^2 x}