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Did i take this derivative of the vector right? 
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#1
Oct1305, 10:14 PM

P: 1,629

Hello everyone, i just want to check to see if this derivative of the vector is right, I can't access maple and i don't have a ti89 so i can't check!
here it is: http://show.imagehosting.us/show/798..._1_798939.jpg 


#3
Oct1305, 10:56 PM

P: 1,629

ahh should be r >0 right? is the derivative right too? thanks!



#4
Oct1305, 10:58 PM

PF Gold
P: 7,120

Did i take this derivative of the vector right?
No. Look what happens to the i vector when you have t=3



#5
Oct1305, 11:25 PM

P: 1,629

oh f word....
can i say, t < 0? 


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