Did i take this derivative of the vector right?

  1. jcsd
  2. Pengwuino

    Pengwuino 7,118
    Gold Member

    Check that domain section...
     
  3. ahh should be r >0 right? is the derivative right too? thanks!
     
  4. Pengwuino

    Pengwuino 7,118
    Gold Member

    No. Look what happens to the i vector when you have t=3
     
  5. oh f word....
    can i say, t < 0?
     
  6. Pengwuino

    Pengwuino 7,118
    Gold Member

    Well, the thing is that it can go above 0... but how far?

    Start looking at the equations and ask yourself where each one has a valid result. For example, the i component can be t=<2
     
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