f() , 0 , > 0 > 0, , | 0 | < , | f() | < .
, f() , , 0:
f() =
lim - , . x 0 , .
:
n ε N, n ≥ N n ε.
f() = g() = , ,
1. :
(f() + g()) = + ;
2. c - :
cf() = = const;
3. :
(f() g()) = ;
4. :
B 0.
3.3.
α () = 0, α () 0..,
f() =∞, f()
0.
, 2, 3
0, , ¥ ( ).
, , , .
a(), b() ..
a() ~ b() 0, 1.
0, , ¹0 .
a() 0 , b() 0,
=0
,
.
1.
), ).
) 0 = - 2, ) 0 = ∞.
1) 0 = - 2
=
, -2, , .
1) 0 = ¥
().
|
|
2:
22 - 1 = 2 1/ 1/ 2 = 2, ;
42 5 + 1 = 4 5/ + 1/ 2 =4, . :
= ;
: ¥.
2:
:
0 = 0
:
(), . , 0, .
= = 3.
3.4.
(1 + ) = ℮
3
, :
(
:
, 5 . . 5, 5, 5, .
( =[(1+ = ℮
3.5.
= 0, , :
= f(x0)
, . , , , , . , . .
- 0 .
0 .
f() 0 , .
0 f (0), f() 0.
0 .
, , .
, .
f() g () , , . () - , 0, g (0) = 0.
3.6. , .
.
[a,b] , .
. , (a,b), f(x) = 0.
f() = 0.
|
|
.
[a,b ], .
1. ) 0 = 2, ) 0 = ¥
2. ) 0 = 1, ) 0 = ¥
3. ) 0 = -1, ) 0 = ¥
4. ) 0 = -2, ) 0 = ¥
5. ) 0 = 3, ) 0 = ¥
6. ) 0 = 2, ) 0 = ¥
7. ) 0 = -2, ) 0 = ¥
8. ) 0 = -1, ) 0 = ¥
9. ) 0 = 0, ) 0 = ¥
10. ) 0 = 2, ) 0 = ¥