Question

prove 1 +cos^2 theta /sin^2 theta - cosec^2 theta= cosa

Answer 1

Answer:

Prove the following trigonometric identities: 1. (1 – cos2 A) cosec2 A = 1 ... (1 + cot2 θ) – (1 – cos2 θ) [ Using cosec2 θ − cot2 θ = 1 and sin2 θ + cos2 θ = 1]