Question

Verifying Trig Functions

Answer 1

steps

Explanation:

1 - sin²θ / (1 - cosθ) = 1 - (1 - cos²θ) /(1 - cosθ)

= 1 - (1 + cosθ)(1 - cosθ) /(1 - cosθ)

= 1 - (1 + cosθ)

= - cosθ