Given the vector function r(t) = <t, t^2, 2t>, find the unit tangent, normal, binormal, and curvature at t=1.
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Find the curvature, the unit tangetn vector, the unit normal and binormal at the point (1, [sqrt8]/3, 1/2) for the curve given by r(t) = (t, {[sqrt8]/3}t^3/2, [1/2]t^2) for 0 less than or equal to t less than or equal to 2