() . A B, , .. "1" "0". 
, : (
), (
), (
), (
) (
). . 5.
5 -
| A | B | 
| 
| 
| 
| 
|
, , , : "", "" "". , . , , , , 
. , "". .
45. 
, , 
, 
. (), (),
(
) () :
;
;
;
.
. , . , , , - {"", " ", " ", "- ", ""}. T -; "", F -; "" T+F - "" :
|
|
| 
| 
| 
|
| T | T | F | T | T |
| T | F | F | F | T |
| T | T+F | F | T+F | T |
| F | T | T | F | T |
| F | F | T | F | F |
| F | T+F | T | F | T+F |
| T+F | T | T+F | T+F | T |
| T+F | F | T+F | F | T+F |
| T+F | T+F | T+F | T+F | T+F |
45 . .
10. :
;
;
.
45, " ":
|
|
|
.
"- ". , :
.
, . , . , , . . 15 :
|
|
|
|
|
| - | - |
46. " - ", . :
, .
"x ", "" -; ( ), x. "", "-", "", "" .. .
"y d", (d) :
1. : "y ";
2. : "y "
3. : "y=5";
4. : "y=5+4*x".
, . " x , y ", 
, 
-; () . t-. t- , :
, 
.
11. (x) - (y):
x = , y = ;
x = , y = ;
x = , y = .
, . 16. , , , . 17.
16 -
17 - , 11
|
|
|
"-" . , , . , 
, :
,
, 
,
- , 
(
);
- -, 
;
- , 
.
, (. 6).
6 -
| 
| 
|
| |
| 
| 
| 
| |
| 
| 
| ||
| 
| 
| ||
| 
| 
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| |
| 
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| ||
| 
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| ||
| 
| 
| 
| |
| 
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| ||
| 
| 
|
. 6 :
,
-; ;
-; ;
-; .
