Proving Identities pt. 2 Verify the following identities: 1. 1 + tan 0 = sec- 0 sin 0 + cos' 0 2. - + - -= 2csc- 0 1-cos 0 1+ cos 0 tan x 1- cos x 3. sec x + 1 COS X 4. cot x-cos x = cos xcot x5. (cosx - sin x) + (cos x + sin x)? = 2 6. 1-3cosx -4cos x 1-4cosx sin x 1- cos x 7. (sec x - tan x)? = 1 -sin x 1 + sin x