Diketahui Koordinat titik A (-8,7) , B (5,3) C (6,-9) dan D (-11,-12) tentukan kompenen vektor : a)AB b) BC c)DA ​

Jawaban:

a) AB = b – a

(5-(-8))i + (3-7)j = 13i + -5j = 13i – 5j

b) BC = c – b

(6-5)i + (-9-3)j = i + -12j = i -12j

c) DA = a – d

(-8-(-11))i + (7-(-12)j = 3i + 19j