Recent content by kskiraly

  1. K

    Can you give a more specific question?

    Homework Statement Find 2 unit vectors u1, u2, lying in the plane, x-y+z=0, which are not parallel to each other. The Attempt at a Solution I've tried taking the unit vector of the normal vector <1,-1,1> which is <1/rad(3),-1/rad(3),1/rad(3)>, but my teacher has told me it is not in...
  2. K

    Power Series Representation

    Homework Statement Find a power series representation for the function f(x) = x / (4+x) and determine the interval of convergence. I have no idea how to begin this problem. My only guess would be trying to divide something out in order to simplify to something that I'm able to...
  3. K

    Convergence of the Sum of Tan(1/n)/(1+n) for n=1 to Infinity?

    mybsaccownt sorry about the last post i didn't fully read your last one.
  4. K

    Convergence of the Sum of Tan(1/n)/(1+n) for n=1 to Infinity?

    Thanks so much but doesn't 1/n diverge by p-series because p=1. remember p-series diverges where 1/(n^p) p<=1
  5. K

    Convergence of the Sum of Tan(1/n)/(1+n) for n=1 to Infinity?

    Homework Statement sum of tan(1/n)/(1+n) for n=1 to infinity Homework Equations The Attempt at a Solution I tried using the ratio test and the comparison/limit comparison tests but can't think on anything to compare it to.
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