1) Find ye, Up, the general solution, and the definite solution given dy + 4y = 12; y(0) = 2 a) dt dy _ 2y = 0; y(0) = 9 b) dt 2) Solve the following first-order linear differential equations; if an initial condition is given, definitize the arbitrary constant: dy + Ay = 15 a) dt dy + 2ty = 0 b) dt