Q$1)$ Open Traverse

Example $10\mathrm{.}2.$ The coordinates of A and $B$ triangulation points are known. Azimuth $(AB)$ angle which is calculated with the help of reference points is given. Traverse angles ${}_0,{}_1$ and ${}_2$ of $N2,P1$ and $P2$ points are measured. Calculate the coordinates of P$1,$ P$2,$ P$3$ traverse points. $($Please use meter as a unit$)$