Kylerocks4688 Kylerocks4688 23-05-2023 Mathematics contestada Verify that each equation is an identity. (sin x + cos x)2 = sin 2x + 1 sec 2x = 2 + sec? x - sec4 x (cos 2x + sin 2x)2 = 1 + sin 4x (cos 2x – sin 2x"