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(1 point) For the given position vectors r(t)r(t) compute the unit tangent vector T(t)T(t) for the...

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Basic Math

(1 point) For the given position vectors r(t)r(t) compute theunit tangent vector T(t)T(t) for the given value of tt .

A) Let r(t)=〈cos5t,sin5t〉
Then T(π4)〈


B) Let r(t)=〈t^2,t^3〉
Then T(4)=〈

C) Let r(t)=e^(5t)i+e^(−4t)j+tk
Then T(−5)=

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