4. Consider the vector function v(t) = (t, t², t³). (a) (10 points) Find the unit tangent vector function T(t), the unit normal vector function N(t), and the binormal vector function B(t). (b) (5 points) Give an equation for the normal plane to v in terms of t. (c) (10 points) Find the curvature к and the torsion 7 in terms of t.

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