tolong donk pake cara nanti saya jadikan jawaban terbaik

PQ = PA + AQ
= 2/3 BA + 1/2 AC
= 2/3 (BC + CA) + 1/2 AC
= 2/3 (-v + u) + 1/2 (-u)
= -2/3 v + 2/3 u - 1/2 u
= -2/3 v + 1/6 u
= 1/6 u - 2/3 v