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Parametric problem

  • Thread starter kcvch
  • Start date
2
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Question:

If f is a vector-valued function defined by f(t)=(e^(-t), cos(t)), find f''(t).
I'm not even quite sure how to start.

Any help would be loved! Thank you!
 

Answers and Replies

2
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Ok, let me clarify. I attempted to take the derivative of each separate part (thus, e^-t became -e^(-t) and so on), but I don't know what to do with it.
 
1,750
1
What is the difference between ...

[tex]f'(t)[/tex] vs [tex]f''(t)[/tex] ???

Also, [tex]x=e^{-t}[/tex] and [tex]y=\cos t[/tex]

[tex]v(t)=<x=f(t),y=f(t),z=f(t)>[/tex]

You can take the derivative of each separately.
 

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