.


:




:

































 

 

 

 





X, - , x. ³ , . (second-order derivative) :

, - , , (acceleration) t. . .

n- - , ,

. , n - ; : .

. , n - , n - :

.

(second differential) x ( , x ) ;

. .

, n- ( ), n =2,3,... , x. . :

15 .
= f (), (; b), ( ) f ′(), f ′() = 0. , = f ()


. = f (), [ ; b ] (; b), f (a) = f (b), (; b) , f ′() = 0.
: = f () , , (.).

. = f () [ ; b ] (; b), , (.): = f () , .

. f ′(x) = 0 (; b), f () .

. f () g (): 1) [ ; b ];

2) (; b);

3) g' (x) ≠ 0 ,

(; b) ,

16

 

f (x), n - f (n)(a) = , n, , Rn (x), , (xa) n [ Rn (x) = an (x)(x a) n, an (x) → 0 ]. (n + 1)- , Rn (x) :

,

ξ ξ1 - ( . . ). , . .. n- f (x). . . .

= 0:

-

, :

  1. ;
  2. ;
  3. ;
  4. ,

.





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