Question 1 ...................................................................................... For the LTI system initially at rest and described by the following differential equation, 2:9\"(t) + 69'\") + 4:905) = it"(t) (a) [5 marks] find the impulse response Mt). Please note, you CANNOT use Laplace or Fourier Transform to answer this question. Follow the methodology described in the lectures. (b) [5 marks] Find the response of the system y(t) if the input 33(t) is equal to tilt) +6(t)