绗?/p>
1
璁?/p>
闆?/p>
鍚?/p>
鐨?/p>
姒?/p>
蹇?/p>
鍜?/p>
杩?/p>
绠?/p>
銆愪緥
1
銆?/p>
鈻?/p>
宸茬煡
a
鈭?/p>
R
锛?/p>
b
鈭?/p>
R
锛?/p>
鑻?/p>
飪?
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
a
锛?/p>
b
a
锛?/p>
1
锛?/p>
{
a
2
锛?/p>
a
锛?/p>
b,
0}
锛?/p>
鍒?/p>
a
2 014
锛?/p>
b
2 014
锛?/p>
________.
绛旀
1
銆愯缁?/p>
1
銆?/p>
闆嗗悎
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
飪?
飪?/p>
x
鈭?/p>
N
*
飪?/p>
飪?/p>
飪?/p>
12
x
鈭?/p>
Z
涓惈鏈夌殑鍏冪礌涓暟涓?/p>
(
)
锛?/p>
A
锛?/p>
4
B
锛?/p>
6
C
锛?/p>
8
D
锛?/p>
12
绛旀
B
銆愪緥
2
銆?/p>
鈻?/p>
宸茬煡闆嗗悎
A
锛?/p>
{
x
|
锛?/p>
2
鈮?/p>
x
鈮?/p>
7}
锛?/p>
B
锛?/p>
{
x
|
m
锛?/p>
1<
x
<2
m
锛?/p>
1}
锛岃嫢
B
鈯?/p>
A
锛屾眰瀹?/p>
鏁?/p>
m
鐨勫彇鍊艰寖鍥达紟
绛旓細
m
鐨勫彇鍊艰寖鍥翠负
m
鈮?/p>
4.
銆愯缁?/p>
2
銆?/p>
宸茬煡闆嗗悎
A
锛?/p>
{
x
|log
2
x
鈮?/p>
2}
锛?/p>
B
锛?/p>
(
锛嶁垶锛?/p>
a
)
锛岃嫢
A
鈯?/p>
B
锛屽垯瀹炴暟
a
鐨勫彇
鍊艰寖鍥存槸
(
c
锛岋紜鈭?/p>
)
锛屽叾涓?/p>
c
锛?/p>
________.
绛旀
4
銆愪緥
3
銆?/p>
鈻?/p>
璁?/p>
U
锛?/p>
R
锛岄泦鍚?/p>
A
锛?/p>
{
x
|
x
2
锛?/p>
3
x
锛?/p>
2
锛?/p>
0}
锛?/p>
B
锛?/p>
{
x
|
x
2
锛?/p>
(
m
锛?/p>
1)
x
锛?/p>
m
锛?/p>
0}
锛庤嫢
(
鈭?/p>
U
A
)
鈭?/p>
B
锛?/p>
鈭?/p>
锛屽垯
m
鐨勫�兼槸
________
锛?/p>
绛旀
1
鎴?/p>
2
銆愯缁?/p>
3
銆?/p>
(1)(2012路
闄曡タ
)
闆嗗悎
M
锛?/p>
{
x
|lg
x
>0}
锛?/p>
N
锛?/p>
{
x
|
x
2
鈮?/p>
4}
锛屽垯
M
鈭?/p>
N
锛?/p>
(
)
锛?/p>
A
锛?/p>
(1,2)
B
锛?/p>
[1,2)
C
锛?/p>
(1,2]
D
锛?/p>
[1,2]
(2)(2012路
灞变笢
)
宸茬煡鍏ㄩ泦
U
锛?/p>
{0,1,2,3,4}
锛岄泦鍚?/p>
A
锛?/p>
{1,2,3}
锛?/p>
B
锛?/p>
{2,4}
锛屽垯
(
鈭?/p>
U
A
)
鈭?/p>
B
涓?/p>
(
)
锛?/p>
A
锛?/p>
{1,2,4}
B
锛?/p>
{2,3,4}
C
锛?/p>
{0,2,4}
D
锛?/p>
{0,2,3,4}
绛旀
(1)C
(2)C
銆愮湡棰樻帰绌?/p>
1
銆?/p>
鈻?/p>
(2012路
鍖椾含
)
宸茬煡闆嗗悎
A
锛?/p>
{
x
鈭?/p>
R
|3
x
锛?/p>
2>0}
锛?/p>
B
锛?/p>
{
x
鈭?/p>
R
|(
x
锛?/p>
1)(
x
锛?/p>
3)>0}
锛屽垯
A
鈭?/p>
B
锛?/p>
(
)
锛?/p>
A
锛?/p>
(
锛嶁垶锛岋紞
1)
B.
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
锛?/p>
1
锛岋紞
2
3
C.
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?
锛?/p>
2
3
锛?/p>
3
D
锛?/p>
(3
锛岋紜鈭?/p>
)
[
绛旀
] D
銆愯瘯涓�璇?/p>
1
銆?/p>
宸茬煡鍏ㄩ泦
U
锛?/p>
{
y
|
y
锛?/p>
log
2
x
锛?/p>
x
>1}
锛岄泦鍚?/p>
P
锛?/p>
飪?
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
y
|
y
锛?/p>
1
x
锛?/p>
x
>3
锛屽垯
鈭?/p>
U
P
锛?
(
)
锛?/p>