1 cos 2 theta upon 2 is equal to July 8, 2019 16 32 64 128 1 cos 2 theta upon 1 cos 2 theta is equal to tan square theta Sin theta sin 2 theta upon 1 cos theta cos 2 theta is equal to 2 cos square theta 2 upon 1 cot square theta is equal to 2 Prove that sin 2 theta upon 1 cos 2 theta is equal to tan theta 1 + sin theta Cos 1 cos 2 cos 3