cos pi/2 theta -sin theta
cos theta + i sin theta, cos 2 pi - theta, sin theta + cos theta p, sin theta + cos 2 theta, cos 2 theta sin theta, cos 2 theta + sin 2 theta, sin pi/2 + theta, cos pi by 2 plus theta, cos pi - theta, sin 3pi/2+theta -cos theta, cos theta+pi
cos pi/2 theta -sin theta. There are any references about cos pi/2 theta -sin theta in here. you can look below.
cos theta + i sin theta
cos 2 pi - theta
sin theta + cos theta p
sin theta + cos 2 theta
cos 2 theta sin theta
cos 2 theta + sin 2 theta
sin pi/2 + theta
cos pi by 2 plus theta
cos pi - theta
sin 3pi/2+theta -cos theta
cos theta+pi
cos theta + i sin theta, cos 2 pi - theta, sin theta + cos theta p, sin theta + cos 2 theta, cos 2 theta sin theta, cos 2 theta + sin 2 theta, sin pi/2 + theta, cos pi by 2 plus theta, cos pi - theta, sin 3pi/2+theta -cos theta, cos theta+pi