WORD
鏍煎紡
涓撲笟璧勬枡鏁寸悊
楂樹腑鏁板鍑芥暟鐭ヨ瘑鐐规�?/p>
缁?/p>
1.
瀵逛簬闆嗗悎锛屼竴瀹氳鎶撲綇闆嗗悎鐨勪唬琛ㄥ厓绱狅紝鍙婂厓绱犵殑鈥滅‘瀹氭�с�佷簰寮傛�с�?/p>
鏃犲簭鎬р�濄�?/p>
濡傦細闆嗗悎
Ax|ylgx
锛?/p>
By|ylgx
锛?/p>
C(x,y)|ylgx
锛?/p>
A
銆?/p>
B
銆?/p>
C
涓厓绱犲悇琛ㄧず浠�涔堬紵
A
琛ㄧず鍑芥暟
y=lgx
鐨勫畾涔夊煙锛?/p>
B
琛ㄧず鐨勬槸鍊煎煙锛岃�?/p>
C
琛ㄧず鐨勫嵈鏄嚱
鏁颁笂鐨勭偣鐨勮建杩?/p>
2
杩涜闆嗗悎鐨勪氦銆佸苟銆佽ˉ杩愮畻鏃讹紝涓嶈蹇樿闆嗗悎鏈韩鍜岀┖闆嗙殑鐗?/p>
娈?/p>
鎯?/p>
鍐?/p>
娉ㄩ噸鍊熷姪浜庢暟杞村拰鏂囨皬鍥捐В闆嗗悎闂?/p>
棰?/p>
銆?/p>
绌洪泦鏄竴鍒囬泦鍚堢殑瀛愰泦锛屾槸涓�鍒囬潪绌洪泦鍚堢殑鐪熷瓙闆嗐�?/p>
22301
濡傦細闆嗗悎
Ax|xx
锛?/p>
Bx|ax
鑻?/p>
BA
锛屽垯瀹?/p>
鏁?/p>
a
鐨勫�兼瀯鎴愮殑闆嗗悎涓?/p>
1
锛堢瓟锛?/p>
1
锛?/p>
0
锛岋級
3
鏄剧劧锛岃繖閲屽緢瀹规槗瑙ｅ嚭
A
={-1,3}.
鑰?/p>
B
鏈�澶氬彧鏈変竴涓厓绱犮�傛晠
B
鍙兘鏄?/p>
-1
鎴栬�?/p>
3
銆傛牴鎹潯浠讹紝鍙互寰楀埌
a=-1,a=1/3.
浣嗘槸锛岃繖閲屽崈涓囧皬蹇冿紝杩?/p>
鏈?/p>
涓�涓?/p>
B
涓虹┖闆嗙殑鎯呭喌锛屼篃灏辨槸
a=0,
涓嶈鎶婂畠鎼炲繕璁颁簡銆?/p>
3.
娉ㄦ剰涓嬪垪鎬ц川锛?/p>
n
锛?/p>
1
锛夐泦鍚堬紝锛?/p>
鈰嫰
锛岀殑鎵�鏈夊瓙闆嗙殑涓暟鏄?/p>
2
锛?/p>
aaa
n
12
瑕佺煡閬撳畠鐨勬潵鍘嗭細鑻?/p>
B
涓?/p>
A
鐨勫瓙闆嗭紝鍒欏浜庡厓绱?/p>
a
1
鏉ヨ锛屾湁
2
绉嶉�夋嫨锛堝湪
鎴栬�呬笉鍦級銆傚悓鏍凤紝瀵逛簬鍏冪礌
a
2
,a
3
,
鈰嫰
a
n
,
閮芥湁
2
绉嶉�夋嫨锛屾墍浠ワ紝鎬?/p>
鍏?/p>
鏈?/p>
2
n
绉嶉�夋嫨锛屽嵆闆嗗悎
A
鏈?/p>
2
n
涓瓙闆嗐�?/p>
褰撶劧锛屾垜浠篃瑕佹敞鎰忓埌锛岃繖
2
n
绉嶆儏鍐典箣涓紝鍖呭惈浜嗚繖
n
涓厓绱犲叏閮ㄥ湪浣曞叏
閮ㄤ笉鍦ㄧ殑鎯呭喌锛屾晠鐪熷瓙闆嗕釜鏁颁负
2
n
1
锛岄潪绌虹湡瀛愰泦涓暟涓?/p>
2
n
2
锛?/p>
2
锛夎嫢
ABABA
锛?/p>
ABB
锛?/p>
锛?/p>
3
锛夊痉鎽╂牴瀹氬緥锛?/p>
CCCCCC
U
AB
U
A
U
B
锛?/p>
U
AB
U
A
U
B
鏈変簺鐗堟湰鍙兘鏄繖绉嶅啓娉曪紝閬囧埌鍚庤鑳藉鐪?/p>
鎳?/p>