Solve

4. What is the correct integrating factor to solve the following ODE for y(t)? tty! + 3y+1=0. A. p(t) = B. u(t) = % C. p(t) = 3t D. p(t) =F E. None of these 5. Solve the following initial value problem. y +3y=e, y(1) =0. A. y(t) = le e2-3t) B. y(t) =-e *+e%" . y(t) = F(e 2) E. None of these