.


:




:

































 

 

 

 





-

()

()

- ()

n

r ( )

t

r = r1 + r2 + r3

r1 - % ()

r2

r3

( )

 

 

1. = + +

, ,

, , , ,

2. = + -

= × × ×

/

γ /

,

3. = + -

0

4.

=

= / +

 

1. ()

2. () = +

3.

,

,

4.

= N ×

N ()

=

-

, ,

5. ,

= /

(, )

,

= ×n /

n

6.

= /

( )

 

+ + + = + +

-

 





:


: 2016-11-18; !; : 235 |


:

:

, , .
==> ...

1696 - | 1371 -


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