Two forces $P=2\mathrm{.}67kN$ and $Q=3\mathrm{.}32kN$ are applied at point $B$ of beam $AB.$ Using sines and cosines laws, determine,

$($a$)$ the magnitude of their resultant with $3$ Significant Digits. Let's call them aaa

$($b$)$ the direction of this resultant as the angle that makes with the $Q$ force, Let's call them $bbb$