Question: Make a substitution to express the integrand as a rational function and then evaluate the integral. 39. 40. dx x+2 42. ' Jo 1+Vx 41.

Make a substitution to express the integrand as a rational function and then evaluate the integral.

39. 40. dx x+2 42. ' Jo 1+Vx 41. J9 x dx 43. 44. J1/s x +x dx - dx Hint: Substitute u = 45. [Hint: Substitute a 46. dx u = cos A 48. 47. dx e2* + 3e* + 2 dx sin'x + sin xr

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39 Let u x1 Then u 1 dx 2u du du 1 dr xx1 2 S 2u du u1 u 40 Let ux 2 Then x u2 dr u 2u du In 2u du d... View full answer

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