1. As functions of the parameter t, for each of the curves below, a) y(t) = ((1- t)3 + 1,1+t) and b) B(t) = (2 cos(t), 2 sin(t), t) (a) What is y'(t) the velocity of y? (b) What is ||y'(t)|| the speed of y. (c) What is the unit tangent T?
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