|
29. .
| | ={6; 3; -2}.
|
| | X=4, Y=-12. Z , =13.
|
| | A(3; -1; 2), B(-1; 2; 1). .
|
| | N, ={3; -1; 4}, (1; 2; -3).
|
| | ={2; -3; -1}, (1; -1; 2).
|
| | =2 =450, =600, =1200. .
|
| | ={12; -15; -16}.
|
| | ={3/13; 4/13; 12/13}.
|
| | :
| | 756.1
| =450, =600, =1200;
| | 756.2
| =450, =1350, =600;
| | 756.3
| =900, =1500, =600.
|
| | :
| | 757.1
| =300, =450;
| | 757.2
| =600, =600:
| | 757.3
| =1500, =300.
|
| | Ox Oz =1200 =450. Oy?
|
| | Ox Oy =600, =1200. , =2.
|
| | , - 3.
30.
761
| | :
1). , 2). , 3). , 4). .
| 762
| | =13, =19 =24. .
| 763
| | =11, =23 =30. .
| 764
| | , =5, =12. .
| 765
| | =600, =5 =8. .
| 766
| | =1200, =3 =5. .
| 767
| | , :
| | 767.1
| ;
| | 767.2
| ;
| | 767.3
| .
| 768
| | , .
| 769
| | :
| | 769.1
| ;
| | 769.2
| ;
| | 769.3
| ;
| | 769.4
| .
| 770
| | . . , :
| | 770.1
| ;
| | 770.2
| ;
| | 770.3
| ;
| | 770.4
| ;
| | 770.5
| ;
| | 770.6
| .
| 771
| | . , .
| 772
| | ABCDE , : , , , , . :
| | 772.1
| ;
| | 772.2
| ;
| | 772.3
| .
| 773
| | ABCDABCD (.) , : , , . :
| | 773.1
| ;
| | 773.2
| ;
| | 773.3
| ;
| | 773.4
| ;
| | 773.5
| .
| 774
| | , , , , . , , =2, =10, =11.
| 775
| | ={3; -2; 6}, ={-2; 1; 0}. :
| | 775.1
| ;
| | 775.2
| ;
| | 775.3
| ;
| | 775.4
| ;
| | 775.5
| ;
| | 775.6
| .
| 776
| | ={2; -1; 3} ={-6; 3; -9}. , , .
| 777
| | , , .
| 778
| | , A(3; -1; 2), B(1; 2; -1), C(2; 2; -7), D(3; -5; 3) .
| 779
| | A(-1; 5; -10}, B(5; -7; 8), C(2; 2; -7), D(5; -4; 2). , , , , .
| 780
| | ={6; -2; -3}.
| 781
| | ={3; 4; -12}.
| 782
| | ={3; -5; 8} ={-1; 1; -4}.
| 783
| | , , : . , , , =75.
| 784
| | ={2; -3; 6} ={-1; 2; -2} . , , .
| 785
| | ={2; 6; -4} ={4; 2; -2} . , AM, BN, CP.
| 786
| | , - , , , . , , .
| 787
| | ={2; -3}, ={1; 2}. ={9; 4} , .
| 788
| | ={3; -2}, ={-2; 1}, ={7; -4}. , .
| 789
| | ={3; -1}, ={1; -2}, ={-1; 7}. , .
| 790
| | , , , .
| 791
| | A(1; -2), B(2; 1), C(3; 2), D(-2; 3). , , , .
| 792
| | , , , - , . , , , , , , . ( , , . , , .
| 793
| | ={3; -2; 1}, ={-1; 1; -2}, ={2; 1; -3}. ={11; -6; 5} , , .
| 794
| | ={2; 1; 0}, ={1; -2; 2}, ={2; 2; -1}, ={3; 7; -7}. , .
|
|
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