For each of the systems described by the fol- lowing differential equations, find the system transfer function: (a) (b) (d) dy(t) dt dy (1) dr dy (1) +11- +24y(t) = 5- dt dy (1) d12 - 11 dy(t) dt dx(t) +7 +5x(t) dt dy(t) di dy (1) dt +6- dx(t) d12 + 4 dy(1) _ 3 dx(1) dt dt - y(t) = www. dx(1) dt dx(1) dt +6y(1) +2x(1) -x(1) + 3x(1)