.
= f(x) X. ³ 0 X ∆ ≠ 0 , = 0 + ∆ X.
∆ = ∆ f (0) = f (x) - f(x0).
∆ = - 0 - ,
∆ = ∆ f (0) = f(x0 + ∆ )- f (x0) - .
= f(x) 0 , ,
,
'; f'(x); ' - , ;
- = f(x).
. = f(x) 0, .
MN, N .
0 0 :
k - .
y = f(x0) + f'(x0)(x-x0) - = f(x) 0.
Գ
S = S(t) - , :
1) v = s'(t) - ;
2) = V(t) - .
,
- v - . :
1. : .
2. :
3. : ,
- ().
4. , , - :
5. = f (u) . = f (u (x)),
. =
'
- : () = ; f(u) = .
, ' = ³
= f(x) f'(x) ( ),
: y; f(x); .
.
'
,
³. 4.
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