A beam made of a homogeneous material features the thin-walled rectangular cross-section depicted in fig. 6.17, with h/t = 12. A bending moment M is applied to the section and its axis is oriented at an angle with respect to axis 2. (1) Compute the axial stresses at points A and B. (2) On one graph, plot the non-dimensional stresses at points A and B, denoted (A)()/(A)( = 0) and (B)()/(B)( = 0), respectively, for [0,/2]