DETAILS SCALCET9 13.XP.2.009.MI. Find the unit tangent vector T(t) at the point with the given value of the parameter t. r(t) = (4te-t, 8 arctan(t), 8e"), t= 0 T(0) = Need Help? Read It Watch It Master It DETAILS SCALCET9 13.XP.2.012. If r(t) = (4t, 6t2, 6t³), find r'(t), T(1), r"(t), and r'(t) × r"(t). r'(t) = T(1) = r"(t) = r'(t) x r"(t) Need Help? Read It Watch It

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