Recent content by jlt90

  1. J

    Finding the volume of a solid when the solid is a region rotated around a line

    I found where I made my mistake :) So no need to help me anymore. Thanks anyways.
  2. J

    Finding the volume of a solid when the solid is a region rotated around a line

    Homework Statement Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = x^(6), y = 1 about y = 2 Homework Equations The Attempt at a Solution So i drew a picture and found the region to be fin shaped from 0 to...
  3. J

    Having trouble with the antiderivative of this function

    Thank you very much. So the first one becomes \int7/2u du then 7/2ln(x^2+1) after taking the anti derivative and substituting x^2+1 for u. Then the second part becomes arctan x. So would the final answer be (7/2)ln(x^2+1)+arctan(x)?
  4. J

    Having trouble with the antiderivative of this function

    Homework Statement Evaluate the indefinite integral: \int7x+1/x^2+1 dxHomework Equations The Attempt at a Solution My first attempt at the solution was to try using substitution. I set u=x^2+1. so du=2x dx and x=sqrt(u-1). Then I rewrote the integral so it is \int7du/4usqrt(u-1). This is...