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Help w/ eval of calc 3 problem

  1. Nov 28, 2005 #1
    eval. double integal sprt(1+x^2+y^2)ds

    S is helicoid and r(u,v) = ucos(v)i+usin(v)j+vk, with 0 <=u<=4 and 0<=v<=4pi

    help please i dont know what a helicoid is!
  2. jcsd
  3. Nov 29, 2005 #2


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