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Заданы уравнения 3 прямых: l1, l2, l3. НеобходимоЗаданы уравнения 3 прямых: l1, l2, l3. Необходимо 1). Найи тчки пересечения прямых: М1,2; М1,3; М2,3; 2). Доказать , что треугольник прямоугольный; 3). Найти углы треугольнка М1,3;
1.1. l1: 8x – y = 7 l2: 4x + 2y = 6 l3: x + 3y = -1
1.2. l1: 6x + y = 12 l2: -x + 6y = 35 l3: 8x + y = -35
1.3. l1: x + 4y = 14 l2: 4x - y = 5 l3: 3x + 2y = 1
1.4. l1: 5x + y = 11 l2: x - 5y = -3 l3: x + y = 5
1.5. l1: 6x – y = 10 l2: x + 6y = 14 l3: x - y = 7
1.6. l1: 2x - y = 6 l2: 4x + 8y = -8 l3: x + 6y = -2
1.7. l1: 3x + y = 2 l2: 2x - 6y = 8 l3: 5x + y = -8
1.8. l1: 4x + 3y = 5 l2: 3x - 4y = -15 l3: x + 5y = -5
1.9. l1: 5x – y = 9 l2: x + 5y = 7 l3: 4x + 2y = -8
1.10. l1: 4x - 3y = 5 l2: 3x + 4y = 10 l3: x + y = 2
1.11. l1: 3x – y = 8 l2: x + 3y = 6 l3: x + 2y = 8
1.12. l1: 6x - y = 11 l2: -x + 6y = 4 l3: x + y = 10
1.13. l1: 4x + 4y = 12 l2: -x + y = 1 l3: 2x - y = 5
1.14. l1: x + 8y = 10 l2: -8x + y = -15 l3: x + y = -6
1.15. l1: 5x + 2y = 12 l2: -2x + 5y = 1 l3: x + 2y = -5
1.16. l1: 7x - y = 5 l2: x + 7y = 15 l3: x + 3y = 11
1.17. l1: 3x – y = 7 l2: x + 3y = 9 l3: x + y = 7
1.18. l1: 4x + y = 9 l2: 2x - 8y = -4 l3: x + y = 8
1.19. l1: x + 10y = 14 l2: -10x + y = -39 l3: x + y = -6
1.20. l1: 5x - 2y = 12 l2: 2x + 5y = -1 l3: x + 4y = 1
1.21. l1: 2x + 4y = 6 l2: 6x - 3y = 3 l3: x + y = 5
1.22. l1: 10x - y = 9 l2: x + 10y = 11 l3: x + y = -7
1.23. l1: 3x + 5y = 11 l2: -5x + 3y = -7 l3: x + y = 11
1.24. l1: 12x + y = 10 l2: -x + 12y = -23 l3: x + y = 10
1.25. l1: 8x + y = 10 l2: x - 8y = -15 l3: x + y = -6
1.26. l1: x + y = 5 l2: -x + y = 1 l3: x + 2y = 2
1.27 l1: 4x + y = 12 l2: x - 4y = 3 l3: 2x - y = 6
1.28 l1: 2x + 2y = 6 l2: -x + y = 2 l3: 2x - y = 3
1.29 l1: 3x + 4y = 12 l2: -4x + 3y = 9 l3: 2x - y = 5
1.30 l1: 4x + y = 5 l2: -x + 4y = 3 l3: x - y = 9
1.31 l1: x + 2y = 2 l2: -2x + y = 1 l3: x -2 y = 6
1..32. l1: x + 4y = 14 l2: 4x - y = 5 l3: 3x + 2y = 1
1.33. l1: 2x - y = 6 l2: 4x + 8y = -8 l3: x + 6y = -2
1.34. l1: 4x - 3y = 5 l2: 3x + 4y = 10 l3: x + y = 2
1.35. l1: 6x - y = 11 l2: -x + 6y = 4 l3: x + y = 10
1.36. l1: x + 8y = 10 l2: -8x + y = -15 l3: x + y = -6
1.37. l1: 7x - y = 5 l2: x + 7y = 15 l3: x + 3y = 11
1.38. l1: x + 10y = 14 l2: -10x + y = -39 l3: x + y = -6
1.39. l1: 2x + 4y = 6 l2: 6x - 3y = 3 l3: x + y = 5
1.40. l1: 12x + y = 10 l2: -x + 12y = -23 l3: x + y = 10
1.41. l1: 8x + y = 10 l2: x - 8y = -15 l3: x + y = -6
1.42 l1: 3x + 4y = 12 l2: -4x + 3y = 9 l3: 2x - y = 5
1.43 l1: 4x + y = 5 l2: -x + 4y = 3 l3: x - y = 9
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