AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
cosec A and sin A are reciprocals of each other, i.e., $\text{cosec } A = \dfrac{1}{\sin A}$ (or equivalently, $\sin A \times \text{cosec } A = 1$).
Source: Introduction to Trigonometry, Section 8.2
The examiner expects the reciprocal relationship stated clearly, ideally with the formula. Writing both the formula and the word "reciprocal" is ideal for full marks. Do not confuse cosec A with sin⁻¹A — the textbook explicitly warns against this.