Question: Given r(t) = 2e^t , e^t cos t, e^t sin t , determine the unit tangent vector T(t) evaluated at t = 0 (find N(t),

Given r(t) = 2e^t , e^t cos t, e^t sin t , determine the unit tangent vector T(t) evaluated at t = 0

(find N(t), B(t) also if possible

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