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Intro to parametric curves

  1. Mar 30, 2008 #1
    1. The problem statement, all variables and given/known data
    Identify and sketch the curve represented by the parametric equations:

    [tex]x=1+cost[/tex]
    [tex]y=1+sin^2t[/tex]

    2. Relevant equations
    3. The attempt at a solution
    I have to isolate t in one of these equations and sub whatever t equals into the other equation right? So how do I get rid of the cos on the left here? I'm not so quick with this trig stuff :?

    [tex]cost=x-1[/tex]
    Thanks.
     
  2. jcsd
  3. Mar 30, 2008 #2

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    cos(t)=x-1. Now just remember cos(t)^2+sin(t)^2=1.
     
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