|
( 1, ):
1) -, ( ) ():
2) , i, Ni
3) ,
N1 + N2 + N3 = (N1 + N2) + (N3 + N2) N2
4) ,
N1 + N2 = 8700
N3 + N2 = 7500
N2 = 3200
N1 + N2 + N3 = 8700 + 7500 - 3200 = 13000
5) , 13000.
( 2, ):
1) , ; - A B:
2) NA, NB, NA&B NA|B , A, B, A & B
A | B
3) , A B , NA|B=NA+NB
4) , NA+NB NA&B ,
NA|B = NA + NB - NA&B
5)
N = 8700, N = 7500, N& = 3200
6)
N|B = N + NB N&B = 8700 + 7500 3200 = 13000
7) , 13000.
( 3, ):
1) ( ) () ( ); , 1, 2 3;
2) , , :
& N2 = 3200
N1 + N2 = 8700
N2 + N3 = 7500
3) N2 ,
N1 = 8700 - N2 = 8700 3200 = 5500
N3 = 7500 - N2 = 7500 3200 = 4300
4) |
N1 + N2 + N3 = 5500 + 3200 + 4300 = 13000
5) , 13000.
2. :
| (.) | |
| | | | |
| | | |
| ( & ) | ( & ) |
( )
, , , , .
:
1) , 
:
( & ) | ( & ) Û & ( | )
2)
A = , B = | ,
:
| (.) | |
| | B | |
| B | |
| & B | |
| ? |
3) (. )
NA = NA|B - NB + NA&B = 450 260 + 50 = 240
4) : 240
|
|
|
3. :
| (.) | |
| & ( & | ) | |
| & | |
| & & & |
( )
& &
, , , , .
:
1) , &, :
| (.) | |
| & | | |
| & & | |
| & | ? |
2) A = & :
| (.) | |
| A | | |
| A & | |
| A | ? |
3) (. , )
NA|B = NA + NB - NA&B
NA = NA|B - NB + NA&B
4) : 370 204 + 68 = 234.
5) : 234.
4. :
| (.) | |
| | | | |
| & | |
| & |
( )
&
, , , , .
( 1, ):
1) -
2) , i, Ni
3) 5 , :
4) 4. :
5) , 20.
5. 1000 . . :
| , | |
