562                                                        18
18.6.2     

 ,        -
       ^.       -
            g^.
   ,       
 .     ,   
        ^.   
  .  , :

?, = ?,(1 + g) = ?(1 + gy;

, = E,(l + g) = E,(\ + g) (1 + g) = E,(\ + gy;

E, = E,(l +g) = ?(1 + g) (1 + g) (1 + g) = ?-(1 + gy
  .   ,    /     :

, = ,(\ + g,).

  (18.40)    (18.34)    , 
 = , :

, ^pE,(l+g,)'     L,(1+^)'

^L=PEo L-                  (18.41)
>i  (l+k)'        [,=i (l+k)' J

     ,     
(18.19),   (18.41)   :

l+ge

V~PEQ ^                  (18.42)

"

,          -
     , /^ = Dy.  , -
     .  ,     
     (.. g = g).  , 
   , ,    .   , 
,       :

E,=E,_,(\+g).

,          , 
:

,=,_,(1 +^).
  = D  ^_ ^ = D^_ ^     :

Z)=Z>,.,(1 +g).

  ,         t  1 
    .      
,         t  1 
g,   ,        .

 (18.42)  ,        -
     -    -
 :

V _ i^+Se

--^ 1                               (18.43)