What is the value of (1 – cos2θ) cosec2θ?

To find: (1 – cos2 θ) cosec2 θ

∵


∴


…………(i)


∵ sin2 θ + cos2 θ = 1


∴ sin2 θ = 1 – cos2 θ


⇒ from (i), we have



2