鏁板璇曞嵎
2019
骞翠笂娴峰競鍒濅腑姣曚笟鐢熺粺涓�瀛︿笟鑰冭瘯
鏁板璇曞嵎
锛堟弧鍒?/p>
150
鍒嗭紝鑰冭瘯鏃堕棿
100
鍒嗛挓锛?/p>
涓�銆侀�夋嫨棰橈細
锛堟湰澶ч鍏?/p>
6
棰橈紝姣忛
4
鍒嗭紝婊″垎
24
鍒嗭級
1
锛庝笅鍒楀紡瀛愪腑锛屽睘浜庢渶绠�浜屾鏍瑰紡鐨勬槸锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
9
锛?/p>
锛?/p>
B
锛?/p>
7
锛?/p>
锛?/p>
C
锛?/p>
20
锛?/p>
锛?/p>
D
锛?/p>
1
3
锛?/p>
2
锛庝笅鍒楀叧浜?/p>
x
鐨勪竴鍏冧簩娆℃柟绋嬫湁瀹炴暟鏍圭殑鏄紙
锛?/p>
锛?/p>
A
锛?/p>
2
1
0
x
飥?/p>
飥?/p>
锛?/p>
锛?/p>
B
锛?/p>
2
1
0
x
x
飥?/p>
飥?/p>
飥?/p>
锛?/p>
锛?/p>
C
锛?/p>
2
1
0
x
x
飥?/p>
飥?/p>
飥?/p>
锛?/p>
锛?/p>
D
锛?/p>
2
1
0
x
x
飥?/p>
飥?/p>
飥?/p>
锛?/p>
3
锛庡鏋滃皢鎶涚墿绾?/p>
2
2
y
x
飥?/p>
飥?/p>
鍚戜笅骞崇Щ
1
涓崟浣嶏紝閭ｄ箞鎵�寰楁柊鎶涚墿绾跨殑琛ㄨ揪寮忔槸锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
2
(
1)
2
y
x
飥?/p>
飥?/p>
飥?/p>
锛?/p>
锛?/p>
B
锛?/p>
2
(
1)
2
y
x
飥?/p>
飥?/p>
飥?/p>
锛?/p>
锛?/p>
C
锛?/p>
2
1
y
x
飥?/p>
飥?/p>
锛?/p>
锛?/p>
D
锛?/p>
2
3
y
x
飥?/p>
飥?/p>
锛?/p>
4
锛庢暟鎹?/p>
0
锛?/p>
1
锛?/p>
1
锛?/p>
3
锛?/p>
3
锛?/p>
4
鐨勪腑浣嶇嚎鍜屽钩鍧囨暟鍒嗗埆鏄紙
锛?/p>
锛?/p>
A
锛?/p>
2
鍜?/p>
2.4
锛?/p>
锛?/p>
B
锛?/p>
2
鍜?/p>
2
锛?/p>
锛?/p>
C
锛?/p>
1
鍜?/p>
2
锛?/p>
锛?/p>
D
锛?/p>
3
鍜?/p>
2
锛?/p>
5
锛庡鍥?/p>
1
锛屽凡鐭ュ湪鈻?/p>
ABC
涓紝鐐?/p>
D
銆?/p>
E
銆?/p>
F
鍒嗗埆鏄竟
AB
銆?/p>
AC
銆?/p>
BC
涓婄殑鐐癸紝
DE
鈭?/p>
BC
锛?/p>
EF
鈭?/p>
AB
锛屼笖
AD
鈭?/p>
DB = 3
鈭?/p>
5
锛岄偅涔?/p>
CF
鈭?/p>
CB
绛変簬锛?/p>
锛?/p>
锛?/p>
A
锛?/p>
5
鈭?/p>
8
锛?/p>
锛?/p>
B
锛?/p>
3
鈭?/p>
8
锛?/p>
锛?/p>
C
锛?/p>
3
鈭?/p>
5
锛?/p>
锛?/p>
D
锛?/p>
2
鈭?/p>
5
锛?/p>
6
锛庡湪姊舰
ABCD
涓紝
AD
鈭?/p>
BC
锛屽瑙掔嚎
AC
鍜?/p>
BD
浜や簬鐐?/p>
O
锛屼笅鍒楁潯浠朵腑锛?/p>
鑳藉垽鏂褰?/p>
ABCD
鏄瓑鑵版褰㈢殑鏄紙
锛?/p>
锛?/p>
A
锛夆垹
BDC =
鈭?/p>
BCD
锛?/p>
锛?/p>
B
锛夆垹
ABC =
鈭?/p>
DAB
锛?/p>
锛?/p>
C
锛夆垹
ADB =
鈭?/p>
DAC
锛?/p>
锛?/p>
D
锛夆垹
AOB =
鈭?/p>
BOC
锛?/p>
浜屻�佸～绌洪锛?/p>
锛堟湰澶ч鍏?/p>
12
棰橈紝姣忛
4
鍒嗭紝婊″垎
48
鍒嗭級
7
锛庡洜寮忓垎瑙ｏ細
2
1
a
飥?/p>
= _____________
锛?/p>
8
锛庝笉绛夊紡缁?/p>
1
0
2
3
x
x
x
飥?/p>
飥?/p>
飪?/p>
飪?
飥?/p>
飥?/p>
飪?/p>
鐨勮В闆嗘槸
____________
锛?/p>
9
锛庤绠楋細
2
3
b
a
a
b
飩?/p>
= ___________
锛?/p>
10
锛庤绠楋細
2 (
a
鈹�
b
) + 3
b
= ___________
锛?/p>
11
锛庡凡鐭ュ嚱鏁?/p>
飥?/p>
飥?/p>
2
3
1
x
f
x
飥?/p>
飥?/p>
锛岄偅涔?/p>
飥?/p>
飥?/p>
2
f
= __________
锛?/p>
12
锛庡皢鈥滃畾鐞嗏�濈殑鑻辨枃鍗曡瘝
theorem
涓殑
7
涓瓧姣嶅垎鍒啓鍦?/p>
7
寮犵浉鍚岀殑鍗＄墖涓婏紝瀛楅潰鏈濅笅闅忔剰鏀惧湪妗屽瓙
F
E
A
B
C
D
鍥?/p>
1