妯嘲涓
2012-2013
瀛﹀勾楂樹竴涓嬪鏈熻川閲忔娴嬫暟瀛﹁瘯棰?/p>
涓�銆侀�夋嫨棰橈細
锛堟湰棰?/p>
10
灏忛锛屽叡
50
鍒嗭紝姣忓皬棰樺彧鏈変竴涓�夐」绗﹀悎棰?/p>
鎰忥級
1
锛庤
a
锛?/p>
1
锛?/p>
b
锛烇紞
1,
鍒欎笅鍒椾笉绛夊紡涓亽鎴愮珛鐨勬槸
( )
A
锛?
b
a
1
1
飥?/p>
B
锛?/p>
b
a
1
1
飥?/p>
C
锛?/p>
a
锛?/p>
b
2
D
锛?/p>
a
2
锛?/p>
2b
2
绛夊樊鏁板垪
飦?/p>
飦?/p>
n
a
涓紝
120
10
飥?/p>
S
锛岄偅涔?/p>
10
1
a
a
飥?/p>
鐨勫�兼槸锛?/p>
锛?/p>
A
锛?/p>
12
B
锛?/p>
24
C
锛?/p>
36
D
锛?/p>
48
3
锛庣瓑姣旀暟鍒?/p>
飦?/p>
飦?/p>
n
a
涓紝
9
2
飥?/p>
a
锛?/p>
243
5
飥?/p>
a
锛屽垯
飦?/p>
飦?/p>
n
a
鐨勫墠
4
椤瑰拰涓猴紙
锛?/p>
A
锛?/p>
81
B
锛?/p>
120
C
锛?/p>
168
D
锛?/p>
192
4
锛庡鏋滅洿绾?/p>
ax+(1-b)y+5=0
鍜?/p>
(1+a)x-y-b=0
鍚屾椂骞宠浜庣洿绾?/p>
x-2y+3=0,
鍒?/p>
a
銆?/p>
b
鐨勫�间负锛?/p>
锛?/p>
A
锛?/p>
a=
2
1
, b=0 B
锛?/p>
a=2, b=0
C
锛?/p>
a=-
2
1
, b=0 D
锛?/p>
a=-
2
1
, b=2
5
鍦ㄦ暟鍒?/p>
飦?/p>
飦?/p>
n
a
涓紝
2
1
飥?/p>
a
锛?/p>
1
2
2
1
飥?/p>
飥?/p>
飥?/p>
n
n
a
a
锛屽垯
101
a
鐨勫�间负锛?/p>
锛?/p>
A
锛?/p>
49
B
锛?/p>
50
C
锛?/p>
51
D
锛?/p>
52
6.
鍦ㄤ笉绛夎竟鈻?/p>
ABC
涓紝
a
涓烘渶澶ц竟锛?/p>
濡傛灉
2
a
锛?/p>
2
2
c
b
飥?/p>
锛?/p>
鍒?/p>
A
鐨勫彇鍊艰寖鍥存槸
锛?/p>
锛?/p>
(
,
)
2
A
飦?/p>
飦?/p>
(
,
)
4
2
B
飦?/p>
飦?/p>
(
,
)
3
2
C
飦?/p>
飦?
(0,
)
2
D
飦?/p>
7
锛庝竴鏉＄洿绾胯繃鐐?/p>
P
锛?/p>
-3
锛?/p>
2
3
飥?/p>
锛?/p>
锛屼笖鍦?/p>
25
2
2
飥?/p>
飥?/p>
y
x
鐨勫渾蹇冨埌璇ョ洿绾跨殑璺濈涓?/p>
3
锛屽垯璇ョ洿绾跨殑鏂圭▼涓猴紙
锛?/p>
A
銆?/p>
0
15
4
3
3
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
y
x
x
鎴?/p>
B
銆?/p>
2
3
3
飥?/p>
飥?/p>
飥?/p>
飥?/p>
y
x
鎴?/p>
C
銆?/p>
3
飥?/p>
飥?/p>
x
D
銆?/p>
0
15
4
3
飥?/p>
飥?/p>
飥?/p>
y
x
8.
宸茬煡锛氬湪鈯?/p>
ABC
涓紝
B
C
b
c
cos
cos
飥?/p>
锛屽垯姝や笁瑙掑舰涓?/p>
锛?/p>
锛?/p>
A.
鐩磋涓夎褰?/p>
B.
绛夎叞鐩磋涓夎褰?/p>