Jika AB = 5i + 2j AC = 3i + j Apakah BC?

AB = 5i + 2j
AC = 3i + j

B - A = 5i + 2j
B = (5 i + 2j) + A

C - A = 3i + j
C = (3i + j) + A

BC = (5i + 2j + A)(3i + j + A)
BC = 15 i + 5i(A) + 2j + 2j(A) + A^2
BC = 15i + 2j + A(5i + 2j + A)

semoga membantu yaa ;;))