:
 








²в. ² ̲ .


1. ST, :

) S (-4; 8; -5), (8; 6; -7);

) S (-1; 13; 9), (10; -15; 2).

 

2. . : ) ,

(-6; 2; 3,5), (0; -8; 3); ) ,

(-5; 4; -6), (-3; 8; 5).

 

3. : ) ABCD, :

) (-3; 8; -5), (-7; 6; 7), D (4; -2; -3); ) D, (3; -4; 5),

) (-6; 1; 6), (-5; 2; 1).

 

4. 1(-4; 3; -2) 1(3; -1; -2) . , (5; 3; -6).

 

5. F, :

) (7; -7; 10), F (1; -4; 4);

) (5; -2; -1), F(-3; 4; 3).

 

6. : (3; -5; 0), (7; 1; 4), (-3; 9; -6). MN , N .

 

7.³ (-2; 3; z) (1; -5; -2) 7 .

z.

 

8. :

) , . (4; -5; 6) (2; 3; -4); ) - (-2; 3; 1), (1; 2; -4)

 

9. , z, (-12; 10; -5) .

 

10., ABCD

(-1; 5; 3), (-3; 7; -5), (3; 1; -5) D (5; -1; 3) .

 

 

 

ײ.

вͲ в. . ˲Ͳ в.

 
 


1. , :

) (3; -4; -7), (-1; 5; 3);

) (-4; 0; 8), (0; -6; 2);

) (-2; 3; 4), (6; 13; -2).

 

2. (-3; 2; z), N(4; -6; 3), (; 1; -10), (2; ; -15). , , z, MN = EK.

 

3. ( -8; 3; -5) (6; -9; 2). .

 

4. MNKP

(-3; 2; -4), N(-1; 6; 6), (6; 7; 8), P(4; 3; -2) .

 

5. ABCD: (4; -5; -2), (2; 3; -8), D(-3; -4; 6). .

 
 


6. (5; -3; 4), b(-2; 1; -7), (2; -6; ), d (-3; 6; 3),

m (-5; 5; -2) , .

 

7. n (x; y; z) 3 , x y , z . n.

       
   
 
 


8. CD, (2; -5; 4), (1; 4; 6),

(-4; -6; 8), D(-2; 0; 12)?

 
 


9. , (; -8; 12) b (24; ; -36) .

 

10., MPFK

(-2; 3; -5), (2; 5; 2), F (4; 1; 6), (-4; -3; -8) .

 

 




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