                                              309

         . 
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  .

11.4.4   

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,           -
 18.

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.

   

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    ( (11.3))    
  ( (10.7))19:

=,+,:;                                (11.3)

^^^^M-'-f^.M-                                <10-7)

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(7^ - rf) ,      ,   -
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 ,          ^   -
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,     5%,     Widget 
14%,  .^  ^.    4  2 [14% = 4% + (2  5%)].  ,
        ,    Widget (b. == 2), 
    8%,     .  -2%
[8% = -2% + (2  5%)].

,       (3.    -
     .   Widget  
XYZ   ,  1,2,      -

II 1197