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           ()      .

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    .  .  (24 )








 1



(15)

    -, ,

  .



(16)

         ,  



(17)

D -  - ,    D  48.    D.



(18)

      1 






1   .     .



(19)

    ?

1)        .

2)           .

3)             .

.



(23)               - ,    108      111    .



(25)      - .          


   r


,          





  r


.     ,   =12,  r





=3,  r


=4.



 2



(15)

    - , ,   .



(16)

         ,  



(17)

D -  - ,    D  64.    D.



(18)

      1 






1   .       .



(19)

    ?

1)      .

2)           .

3)             .

.



(23)   -  ==15,  - , =9.       .



(25)     - .          


   r


,          2    r


.     ,   =24,  r





=3,  r


=6.



 3



           

=.  .



(16)

         ,  



(17)

  D       ,NO-, NO=3,75.    D.



(18)

      1 






1   .    .



(19)

    ?

1)       .

2)         .

3)          .

.



(23)               - ,    102      114    .



(25)     - .          


   r


,           2    r


.     ,   =9,  r





=3,  r


=4.



 4



           

=.  .



(16)

         ,  



(17)

D-  N-  D, N= 12, NC=12,5.     D.



(18)

      1 






1   .    .



(19)

      ?

1)       .

2)        .

3)         .

.



(23)      - ,  =10, =6   .



(25)     - .          


   r


,          2    r


.     ,   =24,  r





=4,  r


=8.



 5



(15)

     -   ,          

   .



(16)

AB  D -   =14, =4, =8.     D.



(17)

D -  , AC-   A. 



(18)

      1 






1    ABC.      ,    .



(19)

     ?

1)   -  ,      .

2)             .

3)        ,    .



(23)     D =D=13, BC=11, AD=21.      D.



(25)        - , =,  - , =20, =8, =17.    .



 6



(15)

     -   ,          

   .



(16)

AB  D -   =15, =3, =9.     D.




  .


   .

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