绗?/p>
1
椤碉紙鍏?/p>
25
椤碉級
2016-2017
瀛﹀勾姹熻タ鐪佹櫙寰烽晣甯備節骞寸骇锛堜笂锛夋湡涓暟瀛﹁瘯鍗?/p>
涓�銆侀�夋嫨棰橈紙鏈ぇ棰樺叡
6
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
18
鍒嗭級
1
锛?/p>
锛?/p>
3
鍒嗭級灏嗕竴鍏冧簩娆℃柟绋?/p>
3x
2
+
1=6x
鍖栦负涓�鑸舰寮忓悗锛屽父鏁伴」涓?/p>
1
锛屽垯涓�娆￠」绯?/p>
鏁颁负锛?/p>
锛?/p>
A
锛?/p>
3
B
锛庯梗
6
C
锛庯梗
3
D
锛?/p>
6
2
锛?/p>
锛?/p>
3
鍒嗭級鍦ㄧ煩褰?/p>
ABCD
涓紝
AC
涓?/p>
BD
鐩镐氦浜庣偣
O
锛岃嫢鈭?/p>
DBC=34掳
锛屽垯鈭?/p>
AOB
绛変簬
锛?/p>
锛?/p>
A
锛?/p>
34掳
B
锛?/p>
56掳
C
锛?/p>
68掳
D
锛?/p>
73掳
3
锛?/p>
锛?/p>
3
鍒嗭級鐢ㄩ厤鏂规硶瑙ｆ柟绋?/p>
x
2
+
4x
+
1=0
锛岄厤鏂瑰悗鐨勬柟绋嬫槸锛?/p>
锛?/p>
A
锛?/p>
锛?/p>
x
+
2
锛?/p>
2
=5
B
锛?/p>
锛?/p>
x
锕?/p>
2
锛?/p>
2
=3
C
锛?/p>
锛?/p>
x
锕?/p>
2
锛?/p>
2
=5
D
锛?/p>
锛?/p>
x
+
2
锛?/p>
2
=3
4
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘锛屽凡鐭ョ洿绾?/p>
a
鈭?/p>
b
鈭?/p>
c
锛岀洿绾?/p>
m
銆?/p>
n
涓庣洿绾?/p>
a
銆?/p>
b
銆?/p>
c
鍒嗗埆浜や簬鐐?/p>
A
銆?/p>
C
銆?/p>
E
銆?/p>
B
銆?/p>
D
銆?/p>
F
锛?/p>
AC=4
锛?/p>
CE=6
锛?/p>
BD=3
锛屽垯
BF=
锛?/p>
锛?/p>
A
锛?/p>
7
B
锛?/p>
7.5
C
锛?/p>
8
D
锛?/p>
8.5
5
锛?/p>
锛?/p>
3
鍒嗭級濡傚浘鎵�绀哄钩闈㈠唴锛屾湁涓�闈犲湪澧欓潰涓婄殑姊瓙
AB
锛堢矖缁嗗拷鐣ヤ笉璁★級
锛屽洜澶?/p>
鐣屽洜绱犲鑷存瀛愬簳绔?/p>
A
鎸佺画鍚戝彸婊戝姩锛?/p>
鐩磋嚦鏁存灦姊瓙瀹屽叏婊戣惤鍒板湴闈?/p>
锛堝嵆
B
涓?/p>
O
閲嶅悎锛?/p>
锛岃
A
鍚戝彸婊戝姩鐨勮窛绂讳负
x
锛?/p>
cm
锛?/p>
锛屾瀛愮殑涓偣
M
涓庡瑙?/p>
O
涔嬮棿鐨勮窛绂讳负
y
锛?/p>
cm
锛?/p>
锛?/p>
鍒欏湪鏁翠釜婊戝姩杩囩▼涓紝
y
涓?/p>
x
鐨勫叧绯诲ぇ鑷村彲琛ㄨ揪涓轰笅鍒楀浘璞′腑鐨?/p>
锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?