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Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
You need to differentiate each component of the original vector to get the components of the differentiated vector.
 2 years ago

spndsh Group TitleBest ResponseYou've already chosen the best response.0
dw:1349560630436:dw is this right?
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
No. 1. You forgot to multiply by the constant a. 2. The derivative of sin is cos, not cos. Try again! :)
 2 years ago

spndsh Group TitleBest ResponseYou've already chosen the best response.0
a(1+cos t) + sint
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
Nope. Again: 1. You need to write it as a vector. 2. You forgot the a on the ycomponent (jhat). Try again! Don't get discouraged. This takes time to fully understand. ;)
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
Try writing it as (at  a sin t, a  a cos t). It makes it easier for me. Try that for yourself!
 2 years ago

spndsh Group TitleBest ResponseYou've already chosen the best response.0
dw:1349561042586:dw what about this?
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
There you go! Good job. :)
 2 years ago

spndsh Group TitleBest ResponseYou've already chosen the best response.0
thanks so much!
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
No problem! Do you see the general method of this so that you can do similar problems in the future?
 2 years ago

Ahaanomegas Group TitleBest ResponseYou've already chosen the best response.1
By the way, you're a good learner, @spndsh (!!!)
 2 years ago
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