£¨±¾Ð¡ÌâÂú·Ö14·Ö£©

ΪÁËÁ˽â³õÈýѧÉúÅ®ÉúÉí¸ßÇé¿ö£¬Ä³ÖÐѧ¶Ô³õÈýÅ®ÉúÉí¸ß½øÐÐÁËÒ»´Î²âÁ¿£¬ËùµÃÊý¾ÝÕûÀíºóÁгöÁËƵÂÊ·Ö²¼±íÈçÏ£º

×é¡¡±ð

ƵÊý

ƵÂÊ

145.5¡«149.5

1

0.02

149.5¡«153.5

4

0.08

153.5¡«157.5

20

0.40

157.5¡«161.5

15

0.30

161.5¡«165.5

8

0.16

165.5¡«169.5

M

n

ºÏ¡¡¼Æ

M

N

£¨1£©Çó³ö±íÖÐËù±íʾµÄÊý·Ö±ðÊǶàÉÙ£¿

£¨2£©»­³öƵÂÊ·Ö²¼Ö±·½Í¼.

£¨3£©È«ÌåÅ®ÉúÖÐÉí¸ßÔÚÄÄ×鷶ΧÄÚµÄÈËÊý×î¶à£¿

½â£º£¨1£©

         ¡­¡­¡­¡­6·Ö

     £¨2£©ÂÔ¡­¡­¡­¡­10·Ö£¨3£©ÔÚ153.5----157.5·¶Î§ÄÚ×î¶à¡£¡­¡­¡­¡­14·Ö

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨2011•¹ã¶«Ä£Ä⣩£¨±¾Ð¡ÌâÂú·Ö14·Ö ÒÑÖªº¯Êýf(x)=
3
sin2x+2sin(
¦Ð
4
+x)cos(
¦Ð
4
+x)
£®
£¨I£©»¯¼òf£¨x£©µÄ±í´ïʽ£¬²¢Çóf£¨x£©µÄ×îСÕýÖÜÆÚ£»
£¨II£©µ±x¡Ê[0£¬
¦Ð
2
]  Ê±£¬Çóº¯Êýf(x)
µÄÖµÓò£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨±¾Ð¡ÌâÂú·Ö14·Ö£©ÉèÍÖÔ²C1µÄ·½³ÌΪ(a£¾b£¾0)£¬ÇúÏßC2µÄ·½³ÌΪy=£¬ÇÒÇúÏßC1ÓëC2ÔÚµÚÒ»ÏóÏÞÄÚÖ»ÓÐÒ»¸ö¹«¹²µãP¡££¨1£©ÊÔÓÃa±íʾµãPµÄ×ø±ê£»£¨2£©ÉèA¡¢BÊÇÍÖÔ²C1µÄÁ½¸ö½¹µã£¬µ±a±ä»¯Ê±£¬Çó¡÷ABPµÄÃæ»ýº¯ÊýS(a)µÄÖµÓò£»£¨3£©¼Çmin{y1,y2,¡­¡­,yn}Ϊy1,y2,¡­¡­,ynÖÐ×îСµÄÒ»¸ö¡£Éèg(a)ÊÇÒÔÍÖÔ²C1µÄ°ë½¹¾àΪ±ß³¤µÄÕý·½ÐεÄÃæ»ý£¬ÊÔÇóº¯Êýf(a)=min{g(a), S(a)}µÄ±í´ïʽ¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2011Äê½­Î÷Ê¡¸§ÖÝÊнÌÑÐÊҸ߶þÉÏѧÆÚÆÚÄ©ÊýѧÀí¾í£¨A£© ÌâÐÍ£º½â´ðÌâ

£¨±¾Ð¡ÌâÂú·Ö14·Ö£©
ÒÑÖª=2£¬µã£¨£©ÔÚº¯ÊýµÄͼÏñÉÏ£¬ÆäÖÐ=.
(1)Ö¤Ã÷£ºÊýÁÐ}ÊǵȱÈÊýÁУ»
£¨2£©É裬Çó¼°ÊýÁÐ{}µÄͨÏʽ£»
£¨3£©¼Ç£¬ÇóÊýÁÐ{}µÄÇ°nÏîºÍ£¬²¢Ö¤Ã÷.

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2015½ìɽ¶«Ê¡Íþº£ÊиßÒ»ÉÏѧÆÚÆÚÄ©¿¼ÊÔÊýѧÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

 (±¾Ð¡ÌâÂú·Ö14·Ö)

ijÍøµê¶ÔÒ»Ó¦¼¾ÉÌÆ·¹ýÈ¥20ÌìµÄÏúÊÛ¼Û¸ñ¼°ÏúÊÛÁ¿½øÐÐÁ˼à²âͳ¼Æ·¢ÏÖ£¬µÚÌì()µÄÏúÊÛ¼Û¸ñ(µ¥Î»£ºÔª)Ϊ£¬µÚÌìµÄÏúÊÛÁ¿Îª£¬ÒÑÖª¸ÃÉÌÆ·³É±¾ÎªÃ¿¼þ25Ôª.

£¨¢ñ£©Ð´³öÏúÊÛ¶î¹ØÓÚµÚÌìµÄº¯Êý¹Øϵʽ£»

£¨¢ò£©Çó¸ÃÉÌÆ·µÚ7ÌìµÄÀûÈó£»

£¨¢ó£©¸ÃÉÌÆ·µÚ¼¸ÌìµÄÀûÈó×î´ó£¿²¢Çó³ö×î´óÀûÈó.

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2011-2012ѧÄê¹ã¶«Ê¡¸ßÈýÏÂѧÆÚµÚÒ»´ÎÔ¿¼ÎÄ¿ÆÊýѧÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

£¨±¾Ð¡ÌâÂú·Ö14·Ö£©ÒÑÖªµÄͼÏñÔڵ㴦µÄÇÐÏßÓëÖ±ÏßƽÐÐ.

¢Å Çó£¬Âú×ãµÄ¹Øϵʽ£»

¢Æ ÈôÉϺã³ÉÁ¢£¬ÇóµÄÈ¡Öµ·¶Î§£»

¢Ç Ö¤Ã÷£º£¨£©

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸