Question: vector-valued functions and space curves

  1. Sketch the two vectors listed after the formula for r (t).
  2. Sketch, on the same plane, the curve C dterminated by r (t), and indicate the orientation for the given values of t.

    r (t)=t*i +4*cos (t)j +9*sin (t)k,

    r (0), r(Pi/4),  t>=0

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