Question

what is value of 1 minus cos theta in terms of sine

Answer 1

cos2θ= 1 - 2sin^2θ  (hope you know this)
∴
2sin^2θ= 1 - cos2θ
∵ we want 1 - cos θ, divide θ by 2
∴the equation gets modified as
2sin^2(θ/2) = 1-cos θ
Thank you
hope it helps

Answer 2

Explanation:

hope this helps you sis!!!!??