Given $a=3,b=4,c=5,d=7m,e=7m,f=4m,g=3m,F_{AB}=220N,$ and $F_{AC}=120N.$

Round your answers to $3$ significant figures.

a$)$ Determine unit vectors $u_{AB}$ and $u_{AC}$

b$)$ Determine force vectors $F_{AB}$ and $F_{AC}.$

$F_{AB}=($

$i+$

$j+$

$k)N$

$F_{AC}=($

$i+$

$j+$

$k)N$

c$)$ Determine the resultant force's magnitude.

$F_R=,N$

d$)$ Determine the coordinate direction angles of the resultant force.

$=$

$=$

$=$