Tolong ya dijawab materi vektor kls 10 besok dikumpulkan terimakasih

OA = a
OB = b
Ditanya: PD

PD = PB + BO + OD
PD = ⅔(AB) + (-b) + ½a
PD = ⅔(AO + OB) - b + ½a
PD = ⅔(-a + b) - b + ½a
PD = - ⅔a + ⅔b - b + ½a
PD = -1/6a - 1/3b
PD = - ⅓(½a + b)

PD = PA + AD
= 1/3 BA + 1/2 AO
= 1/3 (BO + OA) + 1/2 AO
= 1/3 (-b + a) + 1/2 (-a)
= -1/3 b + 1/3 a - 1/2 a
= -1/3 b - 1/6 a