1. The problem statement, all variables and given/known data a) Show that phi(t) = e^2t is a solution of y' - 2y = 0 and that C*phi(t) is also a solution for any constant C b) Show that phi(t) = 1/t is a solution of y' + y^2 = 0 for t>0 but that y = c*phi(t) is not a solution unless c = 0 or c = 1 2. Relevant equations What do they mean by "show'? 3. The attempt at a solution a) dy/2y = dt (1/2)ln(y) = t + C y = e^(2t + c) = Ce^2t, where c is any constant Now what? b) -dy/y^2 = dt 1/y = t + C y = 1/(t + C) Again, how do i show?