Answer:
something is missing in your question
Step-by-step explanation:
Answer:
1 - cosΘ
Step-by-step explanation:
using the identity
sin²x + cos²x = 1 , then
sin²x = 1 - cos²x
= ← factor 1 - cos²Θ as a difference of squares
= ← cancel 1 + cosΘ on numerator/ denominator
= 1 - cosΘ