292                                                   11

       . 11.1.     , 
         -
  Widget.      5%,   Widget 
 14% (4% + 2  5%).       1% ,
..  6%,      2% , ..  16%.

           2,9%, 
   Widget  13%. ,  -
  Widget (  )       3,2%. 
       , -
     2,9%,   ,  13%.
      Widget   9,8% (4 + 2  2,9%).
      +3,2% (13% - 9,8%).

   ,  . 11.1   (11.1), -
   Widget        
:

1. ,     ( ).

1. ,          
   ( 6).

3. ,      ( ,).

11.2.2    

           
  /    /:

/. = a.+ b.F,+ .,                             (11.2)
    i    i i    '                             '    '

 f      t, a 6;   
 /   .       , 
        ^. ,  ^ -  
,   ,    . 8, ..  
        " .
 ,      .

 

  ,     /  
  :

7,=,+/>,7,                          (11.3)
 F    .

        
. ,       3%,   -
  Widget  10% (4% + 2  3%).



     ,     
i :

^^+^,,                         (11.4)

 - ^   F,  ^.    .  ,
    3,     15,2, ,  
,   Widget :

o2= ( 3) + 15,2 = 27,2.