Question

Cosec2A.cos2A = cosec2x -1

Answer 1

Answer:

cosec ²A • cos ²A = 1/sin²A • cos ²A

= cos²A/ sin² A

= cot ²A

= cosec ²A - 1

Hence it proved

Step-by-step explanation:

formula.

cosec²A - cot²A = 1