# MA103_W20.zoux4980.Homework_09_W20.pdf - Linyuan Zou...

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Linyuan Zou MA103 W20 Assignment Homework 09 W20 due 03/25/2020 at 07:00pm EDT 1. (1 point) Using the method of substitution, I = Z x 2 ( 2 + 2 x 3 ) 3 dx = Z f ( u ) du where u = du = dx f ( u ) = . -0.166667*(4*xˆ2-2*x+1)ˆ(-3)+C 3. (1 point) Evaluate the indefinite integral: Z x 3 p 11 + x 4 dx = NOTE: Don’t forget your constant of integration. Correct Answers:
Using the above information: Z x 2 ( 2 + 2 x 3 ) 3 dx Z f ( u ) du 4. (1 point) Evaluate the indefinite integral: Z cos x 7sin x + 42 dx = NOTE: Don’t forget the constant of integration. 5. (1 point) Evaluate the indefinite integral
NOTE: Don’t forget your constant of integration.
(correct) Correct Answers: 2 + 2 * x**3 6 * x**2 u**3 / 6 0.25*uˆ3*uˆ1/6+C 0.25*(2+2*xˆ3)ˆ3*(2+2*xˆ3)ˆ1/6+C 2. (1 point) Evaluate the indefinite integral: Z 4 x - 1 ( 4 x 2 - 2 x + 1 ) 4 dx = NOTE: Don’t forget the constant of integration. Answer(s) submitted: