Consider the following vector function. r(t) = (2V2t, e2t, e-2t) (a) Find the unit tangent and unit normal vectors T(t) and N(t). T(t) = ( v2eat, e , ) e N(t) = (b) Use the formula x(t) = IT'(t) | to find the curvature. |r' (t) 1 K(t) =