a→ = 3i→ + 17j→a→ {3; 17}
b→ = -19j→ + 20i→b→ {-19; 20}
c→ = -14i→c→ {-14; 0}
a→ + b→ = (3 + 20)i→ + (17 - 19)j→a→ + b→ {23; -2}
b→ - a→ = (-19 - 3)i→ + (20 - 17)j→b→ - a→ {-22; 3}
AB→ = (4 - 2)i→ + (7 + 3)j→AB→ {2; 10}
AD→ = (7 - 2)i→ + (-4 + 3)j→AD→ {5; -1}
BC→ = (-8 - 4)i→ + (-7 - 7)j→BC→ {-12; -14}
DB→ = (7 - 4)i→ + (-4 - 7)j→DB→ {3; -11}
CA→ = (2 + 8)i→ + (-3 + 7)j→CA→ {10; 4}
CB→ = (4 + 8)i→ + (7 + 7)j→CB→ {12; 14}
a→ = 3i→ + 17j→
a→ {3; 17}
b→ = -19j→ + 20i→
b→ {-19; 20}
c→ = -14i→
c→ {-14; 0}
a→ + b→ = (3 + 20)i→ + (17 - 19)j→
a→ + b→ {23; -2}
b→ - a→ = (-19 - 3)i→ + (20 - 17)j→
b→ - a→ {-22; 3}
AB→ = (4 - 2)i→ + (7 + 3)j→
AB→ {2; 10}
AD→ = (7 - 2)i→ + (-4 + 3)j→
AD→ {5; -1}
BC→ = (-8 - 4)i→ + (-7 - 7)j→
BC→ {-12; -14}
DB→ = (7 - 4)i→ + (-4 - 7)j→
DB→ {3; -11}
CA→ = (2 + 8)i→ + (-3 + 7)j→
CA→ {10; 4}
CB→ = (4 + 8)i→ + (7 + 7)j→
CB→ {12; 14}