Problem $1)$ For the following beam cross section:

a$)$ Calculate $I_{yz}.$

b$)$ Calculate the neutral axis rotation angle, $.$

c$)$ With

$I_z=4i{n}^4,I_y=111i{n}^4,M_y=0,M_z=1,00$

$,$ locate and calculate the maximum tensile stress

$,{}_x($you might need to check multiple locations