4. Define the formal solution to the boundary value problem given below then solve the problem. Plot the solution as a surface for 0 0 wy(2,0) = x(5-2) ta(0, 2) = 0 ur(5, y) = 0. 4. Define the formal solution to the boundary value problem given below then solve the problem. Plot the solution as a surface for 0 0 wy(2,0) = x(5-2) ta(0, 2) = 0 ur(5, y) = 0