Find the derivative r '(t) of the vector function r(t). !!!! Please help me..im running out of time :/
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Find the derivative r '(t) of the vector function r(t). !!!! Please help me..im running out of time :/

[From: ] [author: ] [Date: 11-05-04] [Hit: ]
and t*sin(2t), right?......
(t* cos (5t) , t^2, t* sin (2t) )

find r'(t)...there should be 3 separate answers

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Just differentiate r(t) component-by-component. You can calculate the derivative of t*cos(5t), t^2, and t*sin(2t), right?
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