Solve the following integrals and show your solutions.

3 cote 6. de sin a 11 . 2 tance + 3cos' c da 2 3 cos a sin y dy 12. [ Secdx 2. J(+2y' - 4y] )dy 7. J- COS 3. [(16x7 -5x* +3x " -Vx)dx 8. (tan' x +cot' x-1)dx 3. 15al 4. JJx 1+ dx 9. 1-cosy dy 14. (3' -2sin x)chx sin y 5 cot = 5. +x x 15. 10. (sinx -sec' x + x' -vi)cd sin =