A(2;2);
B(2;5);
C(3;8);
D(–2;7).
Определи координаты векторов:
AB[ ];
AD[ ];
BC[ ];
DB[ ];
CA[ ];
CB[ ];
AD={–2–2; 7–2}={–4; 5}
BC={3–2; 8–5}={1; 3}
DB={2–(–2); 5–7}={4; –2}
CA={2–3; 2–8}={–1; –6}
CB={2–3; 5–8}={–1; –3}