math132-spring2015.435011.Homework06 - Ke Xu Assignment...

This preview shows page 1 - 2 out of 3 pages.

Ke Xumath132-spring2015Assignment Homework06 due 03/03/2015 at 09:00pm CST1.(1 pt)Evaluate the integral using integration by parts with the indi-cated choices ofuanddv:Z-3xln(x)dx;u=ln(x),dv=-3xdxNote: Use an upper-case ”C” for the constant of integration.
2.(1 pt)Evaluate the integral using integration by parts with the indi-cated choices ofuanddv:Z-2tsec2(t)dt;u=-2t,dv=sec2(t)dtNote: Use an upper-case ”C” for the constant of integration.Answer(s) submitted:-2t*tant-2*ln(cost)+C(correct)Correct Answers:-2*t*tan(t)--2*ln(abs(sec(t)))+C+c3.(1 pt) Evaluate the indefinite integral.Zxarctan(3x)dxAnswer =+CAnswer(s) submitted:arctan(3x)*xˆ2/2-3/2*(x/9-arctan(3x)/27)(correct)Correct Answers:((1 + 9*xˆ2)/(2*9))*arctan(3*x) - x/(2*3)4.(1 pt) Evaluate the indefinite integral.Zln(x2+17x+70)dxAnswer(s) submitted:x*(ln(xˆ2+17x+70)-2)+7*ln(x+7)+10ln(x+10)(correct)Correct Answers:(x + 7)*ln(x + 7) + (x + 10)*ln(x + 10) - 2*x

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture