7.1 :
- ; ܻ ˻ ;
- ;
- ܻ;
- 25 ; ˻.
7.2 100:
- 7.1 30 ;
- ;
- 15 . 50 . ;
- ( ) 0, 20, 40, 60, 80, 100 % ( 100 % , 0 % - ).
- 100 % . 2...5 . . . , . ;
- , - 50 . . . ;
- Ai, , , ,
i = (15-);
- - 15 .
;
- . , 5 - 10 . - 50 .
0 % . (1) .
. , , 3 . 1.
1 -
, % | 1 1 | 2 2 | 3 A3 | Ai, Ai=15-A | |
1. 0 ( ) | |||||
2. 20 ( 80%) | |||||
3. 40 ( 60%) | |||||
4. 60 ( 40%) | |||||
5. 80 ( 20%) | |||||
6. 100 ( - ) |
(1). , , W, %.
|
|
7.3
() 4 . 3 , . (1) . 2.
2 -
( ) | 1 1 | 2 2 | 3 3 | A i, , A i=15- A | -, % | |
. . () .
= f (W) .
.
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