ΕΚΔΟΣΕΙΣ ΤΣΕΚΟΥΡΑ ΘΕΜΑΤΑ ΠΡΟΣΟΜΟΙΩΣΗΣ 2, 2015
description
Transcript of ΕΚΔΟΣΕΙΣ ΤΣΕΚΟΥΡΑ ΘΕΜΑΤΑ ΠΡΟΣΟΜΟΙΩΣΗΣ 2, 2015
-
1
T,
2015
1
2015
& ..
20 2015
:
: (4)
1 . (, )
x0 .
f (x ) > 0 (, x0) f (x) < 0 (x0 , ) ,
f f (x0).
10
3 . [, ];
5
3 . ,
1. x0
x0 .
2
2. f: f (x) = 0
x f
2
3. f 11
x0 x x
2
-
2
T,
2015
2
4. f, g x0
fog x0
2
5.
f .
2
z, w
z( z + 1) 2i Im(z) = 4 + z , (1) w = 2z + 3 4i
1 . z
(0, 0) 2
w
6
B2 . |z w|
6
3 . 2|z| + |w| 5
5
4 . z1 , z2 (1)
1 2
1 2
3z zi
z z
11 5
2 1z z i
i
8
-
3
T,
2015
3
f:[ 2,2]
(x2 4) [f (x) ex + e x] = ex + e x f(x), (1)
x[ 2,2].
1 .
f (x) = ex + e
x, x[ 2,2].
7
2 . f ,
.
6
3 .
e3 x
e2 x + ex = 0
.
4
4 .
ex + 2
+ 2xe 4e e x
2x 2e
7
f (0,+ )
f (x) = 3 + , x(0,+ ).
1 N f.
5
2x
2
x
tf ( )
x dtx
3x 1
3
-
4
T,
2015
4
g (x) = f (x) lnx, x(0,+ ).
2 N g (0,+ ).
4
3 N ()
h (x) =
k (x) =
x = x = .
8
4
F (x) = G (x) = , x(0,+ )
N
H (x) = F (x) G (x), x(0,+ )
(0,+ ).
7
|
,
, ,
1
2
g (x)
x
2
g (x)
x
1
4
1
2
2x
x
g(t) dt
t3x
2x
g(t) dt
t
-
5
T,
2015
5
SOS
2015
6938.358.578
-
6
T,
2015
6
SOS
2015
6938.358.578
-
7
T,
2015
7
SOS
2015
6938.358.578
-
8
T,
2015
8