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  1. .
  2. .
  3. .
  4. .
  5. .
  6. .

, , d - : = (- D, ), d = d (e)> 0.

= (Xo, xo+ D), d = d (e)> 0.

O (x- 0, d) = {: - D }, D> 0

O ( + 0, d) = {: ? o+ D}, d> 0.

. 4.2.

4.1.

. 4.3.

f () = sin = , x ? 0.

, .

4.1. f () (- ) U f (- ) = f (+ ).

: ,

"e> $ d = d (e)> : c c cf () ? A c

$ = (- D, ) = (X, x+ D):

= = .

, = f (x) = , "e> 0 $ d1= d1 (E) d2= d2(E) , ,

- d1< <, , < + d2 ?

cf () - Ac

³ d = min {d1, d2} ? cf (x) - A ? c

? . , 3.1 .

4.1. f () , (, ), .

4.2.( )

o, F () ? " ? ? F [f (x)]



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