Задачи по аналитической геометрии. Микенберг М.А. - 20 стр.

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A(10; 13) B(2; 3) C(2; 1)
B
C
α(2x + y + 4) + β(x 2y 3) = 0.
(2; 3)
10
2x 9y + 18 = 0 6x + 7y 21 = 0
3x y 4 = 0 2x + 6y + 3 = 0
3x + 4y 5 = 0 5x 12y + 3 = 0
x 3y + 5 = 0 3x y + 15 = 0
(2; 7)
(1; 2) 5
a) 3x y = 0 2x + y 5 = 0;
b) 4x y 7 = 0 x + 4y 8 = 0.
(2; 8) (1; 7)
(1; 2)
(3; 3) (5; 2)
(5; 2)
4x y + 3 = 0
2x y + 3 = 0 x + 5y 7 = 0 3x 2y + 6 = 0