(3; -5), (-1; 1) . . | ||
(1; 4), (-2; 2). Q . | ||
(1; -3), (3; -5), (-5; 7). . | ||
(3; -1), (2; 1). : | ||
89.1 | , ; | |
89.2 | N, . | |
(2; -1), N (-1; 4), P(-2; 2) . . | ||
(3; -5), B(5; -3), C(-1; 3). D, B. | ||
(-3; 5), B(1; 7) M(1; 1). . | ||
(2; 3), B(4; -1), C(0; 5) ABCD. D. | ||
A(1; 4), B(3; -9), C(-5; 2). , B. | ||
, A(1; -3), B(4; 3) . . | ||
A(2; -5), B(1; -2), C(4; 7). . | ||
A(3; -5), B(-3; 3), C(-1; -2). . | ||
(-1; -1), B(3; 5), C(-4; 1). . | ||
(3; -5), B(1; -3), C(2; -2). . | ||
(1; 1), (3; 3), (4; 7). , , . | ||
, P(2; 2), Q(1; 5) . | ||
M1(-12; -13), M2(-2; -5). , 3. | ||
M(2; -3), N(-6, 5). , 5. | ||
A(7; -3), B(23; -6). . | ||
A(5; 2), B(-4; -7). . | ||
(-3; 12), B(3; -4), C(5; -4), D(5; 8). , AC BD. | ||
A(-2; 14), B(4; -2), C(6; -2), D(6; 10). AC BD. | ||
A(x1; y1), B(x2; y2), C(x3; y3). . . | ||
M , (2; -3) B(-5; 1), C . M C. | ||
A(x1; y1), B(x2; y2), C(x3; y3). , . , . | ||
, 12, , , (.). . | ||
, a b, ; , (). . | ||
, 2 a, ; , (). . | ||
A(x1; y1), B(x2; y2), C(x3; y3) m, n, p. . | ||
A(4; 2), B(7; -2), C(1; 6) , . . |
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