2. Consider the discretised plate shown below. A steady-state solution to temperature is sought at the nodal locations. The top boundary is exposed to a convectio boundary condition (indicated on the figure below) where h is the heat transfer coefficient, T is the temperature at the edge of the plate, and T. is the ambient temperature in the fluid passing the plate edge. dT/dy = h (T - Ta) 0 , 3 2, 3 3, 3 4, 3 0, 2 1 , 2 2 , 2 3 , 2 4,2 Ay 0, 1 1 , 1 3 , 1 4, 1 0,0 1,0 2, 0 3,0 4,0 Ax Write a discretised expression for the boundary condition at node (3,3). Use a first-order approximation