For Exercises 51 10, evaluate the following integrals. Assume a, b, c, and k are constants. Exercises 7 69 can be done with- out an integral table, as can some of the later problems. 5. /(3w+7)dw 6- f 62%" 7. sin t dt 8. cos 2t dt9. e 5z dz 10. cos(x + 1) dx11. sin 20 do 12. (x3 - 1) x2 dx13. (23/2 + 2 2/3) da 14. (ex + 37) dx16. dx 1 15. dz ez\f19. tet dt 22. xv1 - x dx31. dz 32. cos2 0 de Cos2 z\f(In x ) 2 35. dac (t + 2)2 36. dt37. (202 + 220 + 2 ) t+1 dx 38. t2 dt 39. / te*2+ 1 at 40. tan 0 do