2018
灞婃睙鑻忕渷鎵窞涓楂樹笁
鏁板鍐插埡璁粌
涓�銆佸～绌洪锛?/p>
1
锛庤鍏ㄩ泦
{
1
,3,5,7,9}
I
飥?/p>
锛岄泦鍚?/p>
A
锛?/p>
{1
锛?/p>
3
锛?/p>
9}
锛屽垯
I
C
A
锛?/p>
___________
2
锛庤绠楀鏁?/p>
(1
锛?/p>
i
)
2
锛?/p>
i
i
2
1
2
4
飥?/p>
飥?/p>
锛?/p>
____________
3
锛庡凡鐭ュ悜閲?/p>
a
=
锛?/p>
1
锛?/p>
飦?/p>
sin
锛?/p>
1
锛?/p>
锛?/p>
b
=
锛?/p>
2
1
锛?/p>
1
锛?/p>
飦?/p>
sin
锛?/p>
锛屼笖
a
鈭?
b
锛?/p>
鍒欓攼瑙?/p>
飦?/p>
绛変簬
______
4
锛庤嫢涓夌偣
A
(2
锛?/p>
2)
锛?/p>
B
(
a
锛?/p>
0)
锛?/p>
C
(0
锛?/p>
b
)
锛?/p>
(
ab
鈮?/p>
0)
鍏辩嚎锛屽垯
b
a
1
1
飥?/p>
鐨勫�肩瓑浜?/p>
_______
锛?/p>
5
锛庡鍙冲浘
,
璇ョ▼搴忚繍琛屽悗杈撳嚭鐨勭粨鏋滀负
__________.
6
锛庤
lg
,
0
(
)
10
,
0
x
x
x
f
x
x
飥?/p>
飪?/p>
飥?/p>
飪?/p>
飪?
鈥?/p>
锛屽垯
(
(
2))
f
f
飥?/p>
飥?/p>
______.
7
锛庡凡鐭ラ泦鍚?/p>
A
锛?/p>
{
x
锝?/p>
x
2
锛?/p>
3
x
锛?/p>
2
锛?/p>
0}
锛?/p>
B
锛?/p>
{
x
锝?/p>
x
锛?/p>
a
}
锛岃嫢
A
飪?/p>
B
锛屽垯瀹炴暟
a
鐨勫彇鍊?/p>
鑼冨洿鏄?/p>
____________
锛?/p>
8
锛庡凡鐭ュ渾
C
锛?/p>
x
2
锛?/p>
y
2
锛?/p>
12
锛岀洿绾?/p>
l
锛?/p>
4
x
锛?/p>
3
y
锛?/p>
25
锛屽渾
C
涓婁换鎰忎竴鐐?/p>
A
鍒扮洿绾?/p>
l
鐨?
璺濈灏忎簬
2
鐨勬鐜囦负
________
锛?/p>
9
锛?/p>
鑻?/p>
绛?/p>
杈?/p>
鈻?/p>
ABC
鐨?/p>
杈?/p>
闀?/p>
涓?/p>
3
2
锛?/p>
骞?/p>
闈?/p>
鍐?/p>
涓�
鐐?/p>
M
婊?/p>
瓒?/p>
CA
CB
CM
3
2
6
1
飥?/p>
飥?/p>
锛?/p>
鍒?
飥?/p>
飪?/p>
MB
MA
______
锛?/p>
10
锛庡湪姝ｄ笁妫遍敟
P
锛?/p>
ABC
涓紝
M
锛?/p>
N
鍒嗗埆鏄?/p>
PB
锛?/p>
PC
鐨勪腑鐐癸紝鑻ユ埅
闈?/p>
AMN
鈯?/p>
骞?/p>
闈?/p>
PBC
锛?/p>
鍒?/p>
姝?/p>
妫?/p>
閿?/p>
涓?/p>
渚?/p>
闈?/p>
绉?/p>
涓?/p>
搴?/p>
闈?/p>
绉?/p>
鐨?/p>
姣?/p>
涓?/p>
___________
銆?/p>
N
M
B
A
C
P