Question: (a) Find the unit tangent and unit normal vectors T(t) and N(t). (b) Use Formula 9 to find the curvature. r(t) = (t 2, sin

(a) Find the unit tangent and unit normal vectors T(t) and N(t).
(b) Use Formula 9 to find the curvature.
r(t) = (t 2, sin t - t cos t, cos t + t sin t), t > 0

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