2019-2020
骞村叓骞寸骇鏁板涓嬶細绗竴绔犳暣寮忕殑涔橀櫎娴嬭瘯棰?/p>
2
涓�銆佸～绌洪锛堟瘡棰?/p>
4
鍒嗭紝鍏?/p>
32
鍒嗭級
1
銆侊紙
-a
2
锛?/p>
5
梅锛?/p>
-a
锛?/p>
3
=
2
銆佸凡鐭?/p>
8
路
2
2m
锛?/p>
1
路
2
3m
=2
17
锛屽垯
m=
3
銆佽嫢
x
2
-kx
锛?/p>
25
鏄竴涓畬鍏ㄥ钩鏂瑰紡锛屽垯
k
锛?/p>
4
銆佸凡鐭?/p>
a
锛?/p>
a
1
=3
锛屽垯
a
2
+
a
1
2
鐨勫�肩瓑浜?/p>
5
銆佸凡鐭?/p>
2
m
锛?/p>
x
锛?/p>
4
3m
锛?/p>
y
锛岀敤鍚湁瀛楁瘝
x
鐨勪唬鏁板紡琛ㄧず
y
锛屽垯
y
锛?/p>
6
銆佽嫢
5x-3y-2=0,
鍒?/p>
5
3
10
10
x
y
飩?/p>
=_________
7
銆佸鏋?/p>
3,
9
m
n
a
a
飥?/p>
飥?/p>
,
鍒?/p>
3
2
m
n
a
飥?/p>
=________
銆?/p>
8
銆?/p>
2
2004
脳
(
锛?/p>
2)
2004
脳
(
锛?/p>
1
4
)
2004
=_______
浜屻�侀�夋嫨棰橈紙姣忛
4
鍒嗭紝鍏?/p>
48
鍒嗭級
1
銆佽绠楋紙
-
4脳10
3
锛?/p>
2
脳锛?/p>
-
2脳10
3
锛?/p>
3
鐨勬纭粨鏋滄槸锛?/p>
锛?/p>
A
锛?.08脳10
17
B.-
1.28脳10
17
C.4.8脳10
16
D.-
1.4脳10
16
2
銆佸鏋滀竴涓崟椤瑰紡涓?/p>
3
ab
飥?/p>
鐨勭Н涓?/p>
2
3
4
a
bc
飥?
,
鍒欒繖涓崟椤瑰紡涓猴紙
锛?/p>
A
銆?/p>
2
1
4
a
c
B
銆?/p>
1
4
ac
C
銆?/p>
2
9
4
a
c
D
銆?/p>
9
4
ac
3
銆佸鏋?/p>
(x
锛?/p>
2)(x
锛?/p>
3)
锛?/p>
x
2
锛?/p>
px
锛?/p>
q
锛岄偅涔?/p>
p
銆?/p>
q
鐨勫�间负
锛?/p>
锛?/p>
A
锛?/p>
p
锛?/p>
5
锛?/p>
q
锛?/p>
6 B
锛?/p>
p
锛?/p>
1
锛?/p>
q
锛濓紞
6
C
锛?/p>
p
锛?/p>
1
锛?/p>
q
锛?/p>
6
D
锛?/p>
p
锛?/p>
5
锛?/p>
q
锛濓紞
6
4
銆佸凡鐭?/p>
(a+b)
2
=m
锛?/p>
(a
鈥?/p>
b)
2
=n
锛屽垯
ab
绛変簬锛?/p>
锛?/p>
A
銆?
飥?/p>
飥?/p>
n
m
飥?/p>
2
1
B
銆?/p>
飥?/p>
飥?/p>
n
m
飥?/p>
飥?/p>
2
1
C
銆?/p>
飥?/p>
飥?/p>
n
m
飥?/p>
4
1
D
銆?/p>
飥?/p>
飥?/p>
n
m
飥?/p>
飥?/p>
4
1
5
銆佽嫢浜岄」寮?/p>
4m
2
+9
鍔犱笂涓�涓崟椤瑰紡鍚庢槸涓�鍚?/p>
m
鐨勫畬鍏ㄥ钩鏂瑰紡锛屽垯杩欐牱鐨勫崟椤瑰紡鐨勪釜鏁版湁
锛?/p>
锛?/p>
A
銆?/p>
4
涓?/p>
B
銆?/p>
3
涓?/p>
C
銆?/p>
2
涓?/p>
D
銆?/p>
1
涓?/p>
6
銆佸凡鐭?/p>
M
锛?/p>
8x
2
锛?/p>
y
2
锛?/p>
6x
锛?/p>
2
锛?/p>
N
锛?/p>
9x
2
锛?/p>
4y
锛?/p>
13
锛屽垯
M
锛?/p>
N
鐨勫�?/p>
锛?/p>
锛?/p>
A
銆佷负姝ｆ暟
B
銆佷负璐熸暟
C
銆佷负闈炴鏁?/p>
D
銆佷笉鑳界‘瀹?/p>
7
銆佽瀹氫竴绉嶈繍绠楋細
a*b=ab+a+b,
鍒?/p>
a*
锛?/p>
-b
锛?/p>
+ a*b
璁＄畻缁撴灉涓猴紙
锛?/p>
A. 0 B. 2a C. 2b D.2a b