Question 6 (20 marks)
Find the complementary function of the Differential Equation
d^2y/dt^2 + 6dy/dt + 9y = 0
What is the particular integral of the differential equation for,
d^2y/dt^2 + 6dy/dt + 9y = e^(-3t) / (1 + 9t^2)
(iii) Find the general solution of the differential equation in (ii) satisfying the following initial conditions: y(0) = 2, y'(0) = 4