Hi all,
I am stuck on proving these two problems:
(csc theta - sin theta)^2 = cot^2theta - cos^2theta
and
(1+cos2theta/cos^2theta)=2
I know I need to use double angle identities in the second one, but I have been stuck on how to get going.
Hi all,
I am stuck on proving these two problems:
(csc theta - sin theta)^2 = cot^2theta - cos^2theta
and
(1+cos2theta/cos^2theta)=2
I know I need to use double angle identities in the second one, but I have been stuck on how to get going.