楂樹腑鏁板瀛︿範鏉愭枡
锛堢伩鑻ュ瘨鏄?/p>
绮惧績鏁寸悊鍒朵綔锛?/p>
闄堝簵涓楂樹簩鏁板閫変慨绗竴绔?/p>
甯哥敤閫昏緫鐢ㄨ
娴嬭瘯棰?/p>
(
鐞嗙
)
鐝骇锛?/p>
瀛﹀彿
:
濮撳悕锛?/p>
涓�銆?/p>
閫夋嫨棰橈紙姣忛亾棰樺彧鏈変竴涓瓟妗堬紝姣忛亾棰?/p>
5
鍒嗭紝鍏?/p>
50
鍒嗭級
1
銆佷笅鍒楀懡棰樹腑姝ｇ‘鐨勬槸锛?/p>
锛?/p>
鈶犫�滆嫢
x
2
锛?/p>
y
2
鈮?/p>
0
锛屽垯
x
锛?/p>
y
涓嶅叏涓洪浂鈥濈殑鍚﹀懡棰?/p>
鈶⑩�滆嫢
m>0
锛屽垯
x
2
锛?/p>
x
锛?/p>
m
鏈夊疄鏍光�濈殑閫嗗惁鍛介
鈶♀�滄澶氳竟褰㈤兘鐩镐技鈥濈殑閫嗗懡棰?/p>
鈶ｂ�滆嫢
x
锛?/p>
1
2
3
鏄湁鐞嗘暟锛屽垯
x
鏄棤鐞嗘暟鈥濈殑閫嗗惁鍛介
A
銆佲憼鈶♀憿鈶?/p>
B
銆佲憼鈶⑩懀
C
銆佲憽鈶⑩懀
D
銆佲憼鈶?/p>
2
涓�涓懡棰樹笌浠栦滑鐨勯�嗗懡棰樸�佸惁鍛介銆侀�嗗惁鍛介杩?/p>
4
涓懡棰樹腑锛?/p>
锛?/p>
A
銆?/p>
鐪熷懡棰樹笌鍋囧懡棰樼殑涓暟鐩稿悓
B
銆佺湡鍛介鐨勪釜鏁颁竴瀹氭槸濂囨暟
C
銆佺湡鍛介鐨勪釜鏁颁竴瀹氭槸鍋舵暟
D
銆佺湡鍛介鐨勪釜鏁颁竴瀹氭槸鍙兘鏄鏁帮紝涔熷彲鑳芥槸鍋舵暟
3
銆?/p>
鈥滅敤鍙嶈瘉娉曡瘉鏄庡懡棰樷�滃鏋?/p>
x<y
锛岄偅涔?/p>
5
1
x
>
5
1
y
鈥濇椂锛屽亣璁剧殑鍐呭搴旇鏄紙
锛?/p>
A
銆?/p>
5
1
x
锛?/p>
5
1
y
B
銆?/p>
5
1
x
<
5
1
y
C
銆?/p>
5
1
x
锛?/p>
5
1
y
涓?/p>
5
1
x
<
5
1
y
D
銆?/p>
5
1
x
锛?/p>
5
1
y
鎴?/p>
5
1
x
<
5
1
y
4
銆?/p>
鈥?/p>
a
鈮?/p>
1
鎴?/p>
b
鈮?/p>
2
鈥濇槸鈥?/p>
a
锛?/p>
b
鈮?/p>
3
鈥濈殑锛?/p>
锛?/p>
A
銆佸厖鍒嗕笉蹇呰鏉′欢
B
銆佸繀瑕佷笉鍏呭垎鏉′欢
C
銆佸厖瑕佹潯浠?/p>
D
銆佹棦涓嶅厖鍒嗕篃涓嶅繀瑕?/p>
5
銆?/p>
璁剧敳鏄箼鐨勫厖鍒嗕笉蹇呰鏉′欢锛?/p>
涔欐槸涓欑殑鍏呰鏉′欢锛?/p>
涓佹槸涓欑殑蹇呰闈炲厖鍒嗘潯浠讹紝
鍒欑敳鏄竵鐨?/p>
锛?/p>
锛?/p>
A
銆佸厖鍒嗕笉蹇呰鏉′欢
B
銆佸繀瑕佷笉鍏呭垎鏉′欢
C
銆佸厖瑕佹潯浠?/p>
D
銆佹棦涓嶅厖鍒嗕篃涓嶅繀瑕?/p>
6
銆佸嚱鏁?/p>
f
锛?/p>
x
锛夛紳
x|x+a|+b
鏄鍑芥暟鐨勫厖瑕佹潯浠舵槸锛?/p>
锛?/p>
A
銆?/p>
ab
锛?/p>
0
B
銆?/p>
a
锛?/p>
b=0
C
銆?/p>
a
锛?/p>
b
D
銆?/p>
a
2
锛?/p>
b
2
锛?/p>
0
7
銆?/p>
鈥滆嫢
x
鈮?/p>
a
涓?/p>
x
鈮?/p>
b
锛屽垯
x
2
锛嶏紙
a
锛?/p>
b
锛?/p>
x
锛?/p>
ab
鈮?/p>
0
鈥濈殑鍚﹀懡棰橈紙
锛?/p>
A
銆佽嫢
x
锛?/p>
a
涓?/p>
x
锛?/p>
b
锛屽垯
x
2
锛嶏紙
a
锛?/p>
b
锛?/p>
x
锛?/p>
ab
锛?/p>
0 B
銆佽嫢
x
锛?/p>
a
鎴?/p>
x
锛?/p>
b
锛屽垯
x
2
锛嶏紙
a
锛?/p>
b
锛?/p>
x
锛?/p>
ab
鈮?/p>
0
C
銆佽嫢
x
锛?/p>
a
涓?/p>
x
锛?/p>
b
锛屽垯
x
2
锛嶏紙
a
锛?/p>
b
锛?/p>
x
锛?/p>
ab
鈮?/p>
0 D
銆佽嫢
x
锛?/p>
a
鎴?/p>
x
锛?/p>
b
锛屽垯
x
2
锛嶏紙
a
锛?/p>
b
锛?/p>
x
锛?/p>
ab
锛?/p>
0
8
銆?/p>
鈥?/p>
1
2
m
飥?
鈥濇槸鈥滅洿绾?/p>
(m+2)x+3my+1=0
涓庣洿绾?/p>
(m-2)x+(m+2)y-3=0
鐩镐簰鍨傜洿鈥濈殑锛?/p>
锛?/p>
A
銆佸厖鍒嗕笉蹇呰鏉′欢
B
銆佸繀瑕佷笉鍏呭垎鏉′欢
C
銆佸厖瑕佹潯浠?/p>
D
銆佹棦涓嶅厖鍒嗕篃涓嶅繀瑕?/p>
9
銆佸懡棰?/p>
p
锛氬瓨鍦ㄥ疄鏁?/p>
m
锛屼娇鏂圭▼
x
2
锛?/p>
mx
锛?/p>
1
锛?/p>
0
鏈夊疄鏁版牴锛屽垯鈥滈潪
p
鈥濆舰寮忕殑鍛介鏄紙
锛?/p>
A
銆?/p>
瀛樺湪瀹炴暟
m
锛屼娇寰楁柟绋?/p>
x
2
锛?/p>
mx
锛?/p>
1
锛?/p>
0
鏃犲疄鏍?/p>