Question

In a right angled triangle if sin theta is 1/2 then cos 2 theta will be​

Answer 1

Answer:

1/2

Explanation:

cos 2 theta= 1-2 sin^2 theta

= 1-2(1/4)

= 1-1/2

= 1/2

Answer 2

Answer: cos(2θ) = 1/2

Please look into the attachment for the required solution.

I hope it helps. (θ‿θ)