PLEASE PROVIDE FULL WRITTEN SOLUTION FOR THUMBS UP PLEASE DONT LEAVE OUT STEPS

$($

a$)$ A cantilever beam ABC shown in Figure Q$1($a$)$ has a uniformly distributed load $q$ of $6k\frac{N}{m}$ over the whole beam and a concentrated load $P$ of $3$ kN at Section B$.$ It has rectangular cross section of $80$ mm wide and $100$ mm deep with a Young's modulus $69$ GPa $.$

$($i$)$ Construct the shear force and bending moment diagrams of the beam with pr values and

$($ii$)$ determine the maximum deflection using Macaulay function method.

Figure Q$1($a$)$