4. As is shown in the Fig. 1, in addition to gravity acting on a triangular cantilever beam, there is a linear q=0 acting on the upper boundary. Try to solve the stress components 6. Gy. Try by the x == third-degree polynomial stress function. (20 points) load pure Taking = ax + bxy+cxy + dy. A g(x)-qox/l y pg Fig. 1 B 40 X 4. As is shown in the Fig. 1, in addition to gravity acting on a triangular cantilever beam, there is a linear q=0 acting on the upper boundary. Try to solve the stress components 6. Gy. Try by the x == third-degree polynomial stress function. (20 points) load pure Taking = ax + bxy+cxy + dy. A g(x)-qox/l y pg Fig. 1 B 40 X 4. As is shown in the Fig. 1, in addition to gravity acting on a triangular cantilever beam, there is a linear q=0 acting on the upper boundary. Try to solve the stress components 6. Gy. Try by the x == third-degree polynomial stress function. (20 points) load pure Taking = ax + bxy+cxy + dy. A g(x)-qox/l y pg Fig. 1 B 40 X 4. As is shown in the Fig. 1, in addition to gravity acting on a triangular cantilever beam, there is a linear q=0 acting on the upper boundary. Try to solve the stress components 6. Gy. Try by the x == third-degree polynomial stress function. (20 points) load pure Taking = ax + bxy+cxy + dy. A g(x)-qox/l y pg Fig. 1 B 40 X