Two electronic components of a missile system work in harmony for the success of the total system. Let X and Y denote the life in hours of the two components. The joint density of X and Y is f(x, y)=ye−y(1+x), for x, y≥0, f(x, y)=0, elsewhere. q(a) Give the marginal density functions for both random variables. (b) What is the probability that the lives of both components will exceed 2 hours?