Diketahui A(-1,2,7) B(2,1,4)dan C(6,-3,2).apabila AB = u dan BC = v,maka nilai u + v =

AB = u = [tex] \left[\begin{array}{ccc}2-(-1)\\1-2\\4-7\end{array}\right] = \left[\begin{array}{ccc}3\\-1\\-3\end{array}\right] [/tex]

BC = v = [tex]\left[\begin{array}{ccc}6-2\\-3-1\\2-4\end{array}\right]= \left[\begin{array}{ccc}3\\-4\\-2\end{array}\right][/tex]

u + v = [tex]\left[\begin{array}{ccc}3+3\\-1+(-4)\\-3+(-2)\end{array}\right] = \left[\begin{array}{ccc}6\\-5\\-5\end{array}\right][/tex]