For the given position vectors r(t), compute the (tangent) velocity vector r' (t) for the given value of t. A) Let r(t) = (cos 5t, sin 5t). Then r'()= ( B) Let r(t) = (t², t³). Then r'(4)= ( C) Let r(t) = eſti +e ¹j+tk. Then r'(4)= i+ j+ )? )? k?

Q: r(t) = ti+t²j+ + 1 {/f²k 2

A: Solving the problem

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