Question: 1. Let C be the curve with vector equation r(t) = ; and let P(?, 1, 2) be a point on the curve C. (a)

1. Let C be the curve with vector equation r(t) = ; and let P(?, 1, 2) be a point on the curve C. (a) Find the unit tangent vector of the curve C at the point P. (b) Find the unit normal vector of the curve C at the point P. (c) Find the arc length of the curve C from the origin to the point P

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