Given the vector functions: u(t) = ( e2t, 4t + 1, cos(3t)), v(t) = ( In(t), tan(t), t2), compute the following derivatives (using the differentiation rules if you wish): (a) [u(t) + 30(t) ] (b) [u(t) . v(t) ] (c) [u(t) x v(t) ]