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2.
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3.
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2. 1 .
3. .
3.1. 1
3.1.1. 1-9 (. 4 . 5 ).
3.1.2. . 10:10.
3.1.3. 12:14.
OpenOffice.org Calc , Excel SUMPRODUCT ( ).
3.1.4. 12:14 .
3.1.5. F13 .
OpenOffice.org Calc , Excel SUM ( )
4. .
| A | B | C | D | E | F | |
| X | Y | Z | ||||
| -1 | -3 | -4 | ||||
| ( ) | ||||||
| ( ) | ||||||
| -2 | ||||||
: .
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3.1.6. :
F13
0
( OpenOffice.org Calc: )
( ) 10:10
3.1.8. :
12:14=5:7, .
3.1.9. ().
(. 6).
x = 2; = -1; z = 3.
2
:
) , ;
) .
3.2.1. :
- 16:18;
- ( OpenOffice.org Calc , MINVERSE, );
- 5:7;
- Ctrl+Shift+Enter.
3.2.2. :
- 16:18;
- ( OpenOffice.org Calc , MMULT, );
- : 1 () 16:18
2() 5:E7;
- Ctrl+Shift+Enter.
16:18 , . 3.1.
3
3.3.1. . 7 .
3.3.2. .
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6.
| A | B | C | D | E | F | |
| X | Y | Z | ||||
| -1 | -3 | -4 | ||||
| () | ||||||
| -1 | ||||||
| ( ) | ||||||
| -4 | ||||||
4.
13.
: [1], . 113-116, [6], . 208-215.
7.
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