: .
: ,
:
1. , .. .
= ∑ = 1 + 2 + . + ,
2. , .. .
= 1 2 . ,
3. , .., .
4. () : , , = ( + ) , ..
1. .
) = :
= ; 1 = ; 2 = ; = .
:
∆ = 1 ; ∆ = 2 1; ∆ = 2;
: ∆ = ∆ + ∆ + ∆=
) = /
= / ; 1 = / ; = / ;
:
∆ = 1 ; ∆ = 1;
: ∆ = ∆ + ∆ =
) :
- - = ( ):
= ( ); 1 = ( ); 2 = ( );
= ( );
:
∆ = 1 ; ∆ = 2 1; ∆ = 2;
: ∆ = ∆ + ∆ + ∆ =
- - : = / ( + ):
= / ( + ); 1 = / ( + ); 2 = / ( + );
= / ( + );
.
2. .
) = :
:
∆ = ; ∆ = ; ∆ = ;
∆ = ∆ ; ∆ = ∆ ; ∆ = ∆.
) : = ( - )
∆ = ∆ ( ); ∆ = ∆; = (-∆).
3. .
= .
:
:
1. .
2. .
3. .
4. .
5. .
|
|
6. .
7. .
8. .
1 . . .
| |||||
+,- | % | ||||
, , . () | 230 | 240 | |||
, () | 7,7 | 7,9 | |||
, . () | 1,5 | ||||
, . () | ? | ? |
|