|
31.
795
| | , , =3, =4, :
| | 795.1
| ;
| | 795.2
| ;
| | 795.3
| ;
| | 795.4
| ;
| | 795.5
| ;
| | 795.6
| ;
| | 795.7
| ;
| 796
| | ; , ; , =3, =5, =8, :
| | 796.1
| ;
| | 796.2
| ;
| | 796.3
| .
| 797
| | .
| 798
| | , ; ?
| 799
| | , , , , , .
| 800
| | , , , . .
| 801
| | , , , . , =3, =1, =4, .
| 802
| | , , , 600. , =2, =2, =6, .
| 803
| | , =3, =5. , , .
| 804
| | , .
| 805
| | , .
| 806
| | , .
| 807
| | , . , BD , .
| 808
| | ; , , , .
| 809
| | , , .
| 810
| | , , - - .
| 811
| | , , , - , - .
| 812
| | ={4; -2; -4}, ={6; -3; 2}. :
| | 812.1
| ;
| | 812.2
| ;
| | 812.3
| ;
| | 812.4
| ;
| | 812.5
| ;
| | 812.6
| .
| 813
| | , f={3; -5; 2}, ={2; -5; -7}.
| 814
| | A(-1; 3; -7), B(2; -1; 5), C(0; 1; -5). :
| | 814.1
| ;
| | 814.2
| ;
| | 814.3
| ;
| | 814.5
| .
| 815
| | , f={3; -2; -5}, , , A(2; -3; 5} B(3; -2; -1).
| 816
| | ={3; -4; 2}, ={2; 3; -5}, ={-3; -2; 4}, . , , , , M1(5; 3; -7) M2(4; -1; -4).
| 817
| | A(1; -2; 2), B(1; 4; 0), C(-4; 1; 1), D(-5; -5; 3). , AC BD .
| 818
| | , .
| 819
| | , ={2; -4; 4} ={-3; 2; -6}.
| 820
| | A(-1; -2; 4), B(-4; -2; 0), C(3; -2; 1). .
| 821
| | A(3; 2; -3), B(5; 1; -1), C(1; -2; 1). .
| 822
| | A(1; 2; 1), B(3; -1; 7), C(7; 4; -2), , .
| 823
| | , ={6; -8; -7,5}, Oz. , =50, .
| 824
| | , ={2; 1; -1} .
| 825
| | , , Oy . , , .
| 826
| | , , ={2; 3; -1}, ={1; -2; 3} .
| 827
| | ={3; -1; 5}, ={1; 2; -3}. , Oz , .
| 828
| | , . , , , .
| 829
| | ={4; -3; 2} , .
| 830
| | ={ ; -3; -5} , Ox, Oz , , Oy .
| 831
| | A(3; -4; -2), B(2; 5; -2). , Ox, Oy , , Oz .
| 832
| | ={5; 2; 5} ={2; -1; 2}.
| 833
| | , , . .
| 834
| | ={1; -3; 4}, ={3; -4; 2} ={-1; 1; 4}. .
| 835
| | , , . .
| 836
| | , ={1; -8; -7}, , . .
| 837
| | M(-5; 7; -6), N(7; -9; 9). ={1; -3; 1} .
| 838
| | A(-2; 3; -4), B(3; 2; 5), C(1; -1; 2), D(3; 2; -4). .
|
: 2016-10-22; !; : 1708 | :
:
, . ==> ... 1779 - | 1598 -
© 2015-2024 lektsii.org - - |