Question $3$: Draw the shear and bending$-$moment diagrams for the beam AB $,$ and determine the maximum absolute values of the shear and bending moment. Use and clearly demonstrate method of sections for $\backslash (\backslash$mathbf$\{$a$\}\backslash ))$ and $\backslash (\backslash$mathbf$\{$b$\}\backslash )),$ and use differential relations for $\backslash (\backslash$mathbf$\{$c$\}\backslash )).$