1. .
1. 1. 
2. 
.
3 4 1
= 1 -2 0
2 -1 4
3. 
.
x = (2, -1, 4), p = (0, 1, -1), q = (3, -1, 0), r = (4, -1, 2)
4. 
.
A (1, -2. 3), B (-3, 7, 2), C (3, 1, 4).
5. , 
. 
6. , 
?
a = (2, 3, 1), b = (1, -1, 3), c = (-1, 9, -11).
30.1.
2. .
3 -2 4
= 3 4 -2
2 -1 -1
3. .
x = (3, 1, -5), p = (-1, 1, 0), q = (2, 0, -1), r = (3, 1, 6)
4. .
A (4, -1. 6), B (2, 1, -2), C (1, 3, 9).
5. , . 
6. , ?
a = (3, -2, 1), b = (2, 1, 2), c = (3, -1, -2).
1.2.
1. 
, 
.
2. 
, 
.
3. .
4. .
5. .
30.2.
1. , .
.
2. , 
.
3. .
4. .
5. .
2. .
1.
1.
2.
3. , 
4. ,
5. , , : 
30.
1.
2.
3. , 
4. ,
5. , , . 
3. .
1.1.
1. :
) 
;
) 
;
) 
.
2. :
) 
; ) 
.
3. :
) 
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.
30.1.
1. :
|
|
|
) 
;
) 
;
) 
.
2. :
) 
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.
3. :
) 
; ) 
.
1.2.
.
30.2.
.
