Verify each identity. (Examples 1-3) 1. (sec' a - 1) costo sing 2. sec #(1 - cos' #) = tan # 3. sin e - sin ecos' # = sing 4. coc 8 - cos Poot # = sine 5. cot desc' o - cat's = cotle 6. tan Desc' 9 - tan am col f 7. sin 4 cot 8 sin a 1 - 0OG P 2 coc 0 1 -005 6 + tan 9 = sec a 1 + sin d 10. 1 - cut 9 + 1 - tang = sing + cos # 1 11. 1 + =1 1 - lan 6 1 - cot 6 12. + 1 = 2 sec # sin a 13. (csc # - cot # )esc # + cot #) = 1 14. cost - sint d = cos' 8 - sin # 15. 1 1 1 - sin & + = 2 sec- 0 1 + sing 16. 2 sec D itsne 1 - sing 17. cact # - cotta = 2 cotto + 1