Wronskian.....

Problem 5 (Wronskian). In both cases in Problem 4, compute the Wronskian Wly1, yz] (t) = y1(t) y'2(t) - y'(t) yz(t) and show that it is non-zero for all t. (Recall from the lecture that this means that every solution to the given second order equation is of the form Ciy1 + Czy2 for some constants C1, C2.)