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. ( ).

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, ( , , ).

( ) .

-.

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F (x) f (x) X =(a, b) ( ), f (x) F (x), ..

f (x) .

-

1)- - ,

2)- - , , ,

3)- -(, . - .. )

 

 

f (x) [ a, b ]. f (x) a b , :

-

f (x) [ a, b ]. F (x) - f (x) [ a, b ],

, 0 x, x = a, x = b f (x) ( 1),

 
.1   .2

F (x) G (x) - f (x) g (x), . f (x) ≥ g (x) [ a, b ], , y = f (x), y = g (x) x = a, x = b ( 2),

x t x = g (t):

t

g -1 - g, .. t = g -1(x).






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