Diff eqn solution

Determine whether the following boundary value problems are self- adjoint: a) y" + 3y' + (2 + A)y = 0, y(1) = 0, y(2) = 0. b) (1 + x )y" + 2xy'ty= A(1 + x?)y, y(0) - y'(1) = 0,y'(0) + 2y(1) = 0. Rewrite the following boundary value problems in the form of Sturm-Liouville problem a) 4x y" + 2xy' + ly = 0,y(0) = 0, y(1) = 0. b) y" + 3y' + (2 + 1)y = 0, y(1) = 0, y(2) = 0