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Find the velocity, acceleration, and speed of a particle with the given position function. (a) r(t)...

Find the velocity, acceleration, and speed of a particle with the given position function.

(a) r(t) = e^t cos(t)i+e^t sin(t)j+ te^tk, t = 0

(b) r(t) = 〈t^5 ,sin(t)+ t ^ cos(t),cos(t)+ t^2 sin(t)〉, t = 1

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