need help with work

Verify the following trigonometric identities, showing all steps. Please submit legible work. 1. sin 0 = costan 0 8. tan 0 - - 1 = tan 0 sin 0 tan 8 2. cos 8 sine 9. cos' 0(1 + tan? 0) -1 3. sin 0 -cos' 0 =1-2cos. 0 10. - tan 0 +1 cos 8 4. tan 0 +1 = 1 cos e 1 1. sin 0 -cos' 0 = 2sin30-1 5. 1-cos' @ = sin @ costan 0 12. 1 +cos 0 = 2cos' 0 + sin-0 6. cos' @tan? @ - sin? 0 13. tan'0 - sin 0 - tan? 0sin30 14. sin 0(1 + tan0) = tan @(sin0 +cose) 7. sin Otan 8 + cose = cose