Èçͼ£¬µãA1£¬A2£¬A3£¬A4£¬¡­£¬AnÔÚÉäÏßOAÉÏ£¬µãB1£¬B2£¬B3£¬¡­£¬Bn-1ÔÚÉäÏßOBÉÏ£¬ÇÒA1B1¡ÎA2B2¡ÎA3B3¡Î¡­¡ÎAn-1Bn-1£¬A2B1¡ÎA3B2¡ÎA4B3¡Î¡­¡ÎAnBn-1¡÷A1A2B1£¬¡÷A2A3B2£¬¡­£¬¡÷An-1AnBn-1£¬ÎªÒõÓ°Èý½ÇÐΣ¬Èô¡÷A2B1B2£¬¡÷A3B2B3µÄÃæ»ý·Ö±ðΪ1£¬4£¬ÔòͼÖÐÃæ»ýСÓÚ2009µÄÒõÓ°Èý½ÇÐÎÃæ»ý¹²ÓУ¨¡¡¡¡£©
·ÖÎö£º¸ù¾ÝÏàËƱȵÈÓÚÃæ»ý±ÈµÄƽ·½£¬¿ÉµÃ³ö
A2B1
A3B2
=
1
2
£¬
A2B2
A3B3
=
1
2
£¬ÔÙÓÉƽÐÐÏßµÄÐÔÖʿɵóö
A2B1
A3B2
=
OB1
OB2
£¬
A2B2
A3B3
=
OB2
OB3
=
1
2
£¬´Ó¶ø¿ÉÍƳöÏàÁÚÁ½¸öÒõÓ°²¿·ÖµÄÏàËƱÈΪ1£º2£¬Ãæ»ý±ÈΪ1£º4£¬ÏÈÀûÓõȵ×Èý½ÇÐεÄÃæ»ýÖ®±ÈµÈÓÚ¸ßÖ®±È¿ÉÇó³öµÚÒ»¸ö¼°µÚ¶þ¸öÒõÓ°²¿·ÖµÄÃæ»ý£¬ÔÙÓÉÏàËƱÈΪ1£º2¿ÉÇó³öÃæ»ýСÓÚ2009µÄÒõÓ°²¿·ÖµÄ¸öÊý£®
½â´ð£º½â£ºÓÉÌâÒâµÃ£¬¡÷A2B1B2¡×¡÷A3B2B3£¬
¡à
A2B1
A3B2
=
1
2
£¬
A2B2
A3B3
=
1
2
£¬
ÓÖ¡ßA1B1¡ÎA2B2¡ÎA3B3£¬
¡à
A2B1
A3B2
=
OB1
OB2
=
OA1
OA2
=
1
2
£¬
A2B2
A3B3
=
OB2
OB3
=
1
2
£¬
¡àOA1=A1A2£¬
¼Ì¶ø¿ÉµÃ³ö¹æÂÉ£ºA1A2=
1
2
A2A3=
1
4
A3A4¡­£»B1B2=
1
2
B2B3=
1
4
B3B4¡­
ÓÖ¡÷A2B1B2£¬¡÷A3B2B3µÄÃæ»ý·Ö±ðΪ1¡¢4£¬
¡àS¡÷A1B1A2=
1
2
£¬S¡÷A2B2A3=2£¬
¼Ì¶ø¿ÉÍƳöS¡÷A3B3A4=8£¬S¡÷A£¬4B4A5=32£¬S¡÷A5B5A6=128£¬S¡÷A£¬6B6A7=512£¬S¡÷A£¬7B7A8=2048£¬
¹Ê¿ÉµÃСÓÚ2009µÄÒõÓ°Èý½ÇÐεÄÓУº¡÷A1B1A2£¬¡÷A2B2A3£¬¡÷A3B3A4£¬¡÷A4B4A5£¬¡÷A5B5A6£¬¡÷A6B6A7£¬¹²6¸ö£®
¹ÊÑ¡A£®
µãÆÀ£º´ËÌ⿼²éÁËÏàËÆÈý½ÇÐεÄÅж¨ÓëÐÔÖʼ°Æ½ÐÐÏßµÄÐÔÖÊ£¬½â´ð±¾ÌâµÄ¹Ø¼üÊÇÕÆÎÕÏàËƱȵÈÓÚÃæ»ý±ÈµÄƽ·½£¬¼°Æ½ÐÐÏß·ÖÏ߶γɱÈÀý£¬ÄѶȽϴó£¬×¢Òâ×Ðϸ¹Û²ìͼÐΣ¬µÃ³ö¹æÂÉ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼ£¬µãA1£¬A2£¬A3£¬A4ÔÚÉäÏßOAÉÏ£¬µãB1£¬B2£¬B3ÔÚÉäÏßOBÉÏ£¬ÇÒA1B1¡ÎA2B2¡ÎA3B3£¬A2B1¡ÎA3B2¡ÎA4B3£®Èô¡÷A2B1B2£¬¡÷A3B2B3µÄÃæ»ý·Ö±ðΪ1£¬4£¬ÔòͼÖÐÈý¸öÒõÓ°Èý½ÇÐÎÃæ»ýÖ®ºÍΪ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼ£¬µãA1¡¢A2£¬B1¡¢B2£¬C1¡¢C2·Ö±ðÊÇ¡÷ABCµÄ±ßBC¡¢CA¡¢ABµÄÈýµÈ·Öµã£¬Èô¡÷ABCµÄÖܳ¤ÎªL£¬ÔòÁù±ßÐÎA1A2B1B2C1C2µÄÖܳ¤Îª£¨¡¡¡¡£©
A¡¢
1
3
L
B¡¢3L
C¡¢2L
D¡¢
2
3
L

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

Èçͼ£¬µãA1¡¢A2¡¢A3¡¢¡­¡¢AnÔÚÅ×ÎïÏßy=x2ͼÏóµãB1¡¢B2¡¢B3¡¢¡­¡¢BnÔÚyÖáÉÏ£¬Èô¡÷A1B0B1¡¢¡÷A2B1B2¡¢¡­¡¢¡÷AnBn-1Bn¶¼ÎªµÈÑüÖ±½ÇÈý½ÇÐΣ¨µãB0ÊÇ×ø±êÔ­µã£©£¬Ôò¡÷A2012B2011B2012µÄÑü³¤=
2012
2
2012
2
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

Èçͼ£¬µãA1¡¢A2¡¢A3¡¢¡­¡¢AnÔÚÅ×ÎïÏßy=x2ͼÏóÉÏ£¬µãB1¡¢B2¡¢B3¡¢¡­¡¢BnÔÚyÖáÉÏ£¬Èô¡÷A1B0B1¡¢¡÷A2B1B2¡¢¡­¡¢¡÷AnBn-1Bn¶¼ÎªµÈÑüÖ±½ÇÈý½ÇÐΣ¨µãB0ÊÇ×ø±êÔ­µã£©£¬Ôò¡÷A2013B2012B2013µÄÑü³¤=
2013
2
2013
2
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨2013•ÄϾ©¶þÄ££©Èçͼ£¬µãA1¡¢A2¡¢A3¡¢A4¡¢A5ÔÚ¡ÑOÉÏ£¬ÇÒ
A1A2
=
A2A3
=
A3A4
=
A4A5
=
A5A1
£¬B¡¢C·Ö±ðÊÇA1A2¡¢A2A3ÉÏÁ½µã£¬A1B=A2C£¬A5BÓëA1CÏཻÓÚµãD£¬Ôò¡ÏA5DCµÄ¶ÈÊýΪ
108¡ã
108¡ã
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸