The displacement y(t) of a driven mass-spring system is described by the differential equation 3y" + 14y =7cos(2t) with initial value conditions y(0) = 0, y' (0) = 0 a.) is this system damped or un-damped? b.) Is this system resonant? c.) Write the solution to the IVP in terms of a product of 2 sine functions d.) What is the frequency of the beats Not too sure how to start on this question. Any help to jump start the thinking process would be really appreciated :D.