Recent content by gaywaiha

  1. G

    Integration of y=(1+0.25x^2)^0.5

    Sorry about that. The interval is (0≤x≤2).
  2. G

    Integration of y=(1+0.25x^2)^0.5

    Guys thank you very much. I am sorry that I substituted 2tanx and forgot to type the 2. But now I finally found the answer by separate 1/cos^3x into (1/cosx)(tanx)' and work it out using integration by part. Thank you
  3. G

    Integration of y=(1+0.25x^2)^0.5

    Homework Statement I am told to find out the length of he curve y=¼x^2 Homework Equations The length of the curve should be ∫√(1+¼x^2)dxThe Attempt at a Solution I substituted tanx and got ∫2/cos^3x dx So how could I continue and work out the solution? Should I use integration by part, or I...