Question

1-cos∅/1+cos∅=(cosec∅-cot∅)²​

Answer 1

Answer:

Step-by-step explanation:

(cotθ-cosecθ)²

=cot²θ-2cotθcosecθ+cosec²θ

=cos²θ/sin²θ-2(cosθ/sinθ)

(1/sinθ)+1/sin²θ

=cos²θ/sin²θ-2cosθ/sin²θ+1/sin²θ

=(cos²θ-2cosθ+1)/sin²θ

=(1-cosθ)²/(1-cos²θ)