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= f () ( f ()), δ .

(.. ) (.. ).

 

1. .

, = . , = - f () , . , - f (x).

, =, y = f (x) . = .

 

2. .

y=f (x) ,

 

y = kx + b

 

k b

 

k = , b = (1)

 

, y = kx + b f (x), k b . , , y = kx + b f (x). , . + ¥ ( ) - ¥ ( ). .

= b ( k = 0) . (,f ()) : , = f () ¥, ¥, = f () b ¥, = f () ¥.





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