2015Äê¸ß¿¼Àí¿ÆÊýѧÊÔ¾íÈ«¹ú¾í1º¬´ð°¸ ÁªÏµ¿Í·þ

·¢²¼Ê±¼ä : ÐÇÆÚËÄ ÎÄÕÂ2015Äê¸ß¿¼Àí¿ÆÊýѧÊÔ¾íÈ«¹ú¾í1º¬´ð°¸¸üÐÂÍê±Ï¿ªÊ¼ÔĶÁa5d0f19f6d85ec3a87c24028915f804d2a168725

22ÔÚÖ±½Ç×ø±êϵxOyÖУ¬Ö±ÏßC1:

x=?2£¬Ô²C2£º?x?1???y?2??1,ÒÔ×ø±êÔ­µã

Ϊ¼«µã£¬ xÖáµÄÕý°ëÖáΪ¼«ÖὨÁ¢¼«×ø±êϵ. £¨¢ñ£©ÇóC1£¬C2µÄ¼«×ø±ê·½³Ì£» £¨¢ò£©ÈôÖ±ÏßC3µÄ¼«×ø±ê·½³ÌΪ???4???R?£¬ÉèC2ÓëC3µÄ½»µãΪM,N ,Çó

?C2MNµÄÃæ»ý.

24£®£¨±¾Ð¡ÌâÂú·Ö10·Ö£©Ñ¡ÐÞ4¡ª5£º²»µÈʽѡ½² ÒÑÖªº¯Êý

=|x+1|-2|x-a|£¬a>0.

£¨¢ñ£©µ±a=1ʱ£¬Çó²»µÈʽf£¨x£©>1µÄ½â¼¯£»

£¨¢ò£©Èôf£¨x£©µÄͼÏñÓëxÖáΧ³ÉµÄÈý½ÇÐÎÃæ»ý´óÓÚ6£¬ÇóaµÄÈ¡Öµ·¶Î§.

¡¾´ð°¸½âÎö¡¿ 1.¡¾´ð°¸¡¿A ¡¾½âÎö¡¿ÓÉ

1?z?1?i(?1?i)(1?i)?iµÃ£¬z?==i£¬¹Ê|z|=1£¬¹ÊÑ¡A. 1?z1?i(1?i)(1?i)¿¼µã£º±¾ÌâÖ÷Òª¿¼²é¸´ÊýµÄÔËËãºÍ¸´ÊýµÄÄ£µÈ.

2.¡¾´ð°¸¡¿D

ooooo¡¾½âÎö¡¿Ô­Ê½=sin20cos10?cos20sin10 =sin30=

1£¬¹ÊÑ¡D. 2¿¼µã£º±¾ÌâÖ÷Òª¿¼²éÓÕµ¼¹«Ê½ÓëÁ½½ÇºÍÓë²îµÄÕýÓàÏÒ¹«Ê½. 3.¡¾´ð°¸¡¿C

¡¾½âÎö¡¿?p:?n?N,n?2£¬¹ÊÑ¡C. ¿¼µã£º±¾ÌâÖ÷Òª¿¼²éÌسÆÃüÌâµÄ·ñ¶¨ 4.¡¾´ð°¸¡¿A

2¡¾½âÎö¡¿¸ù¾Ý¶ÀÁ¢Öظ´ÊÔÑ鹫ʽµÃ£¬¸Ãͬѧͨ¹ý²âÊԵĸÅÂÊΪC30.62?0.4?0.63=0.648£¬

2n¹ÊÑ¡A.

¿¼µã£º±¾ÌâÖ÷Òª¿¼²é¶ÀÁ¢Öظ´ÊÔÑéµÄ¸ÅÂʹ«Ê½Ó뻥³âʼþºÍ¸ÅÂʹ«Ê½ 5.¡¾´ð°¸¡¿A

2x02?y¡¾½âÎö¡¿ÓÉÌâÖªF£¬(?3,0),F(3,0)0?1£¬ËùÒÔMF121?MF2= 2222(?3?x0,?y0)?(3?x0,?y0) =x0?y0?3?3y0?1?0£¬½âµÃ?33£¬?y0?33¹ÊÑ¡A.

¿¼µã£ºË«ÇúÏߵıê×¼·½³Ì£»ÏòÁ¿ÊýÁ¿»ý×ø±ê±íʾ£»Ò»Ôª¶þ´Î²»µÈʽ½â·¨. 6.¡¾´ð°¸¡¿B

¡¾½âÎö¡¿ÉèԲ׶µ×Ãæ°ë¾¶Îªr£¬Ôò

116?2?3r?8=r?£¬ËùÒÔÃ׶ѵÄÌå»ýΪ431116320320??3?()2?5=£¬¹Ê¶Ñ·ÅµÄÃ×ԼΪ¡Â1.62¡Ö22£¬¹ÊÑ¡B. 43399¿¼µã£ºÔ²×¶µÄÐÔÖÊÓëԲ׶µÄÌå»ý¹«Ê½ 7.¡¾´ð°¸¡¿A

¡¾½âÎö¡¿ÓÉÌâÖª

11AD?AC?CD?AC?BC?AC?(AC?AB)?=

3314?AB?AC£¬¹ÊÑ¡A. 33¿¼µã£ºÆ½ÃæÏòÁ¿µÄÏßÐÔÔËËã 8.¡¾´ð°¸¡¿D

??1?+??????42?=£¬¡¾½âÎö¡¿ÓÉÎåµã×÷ͼ֪£¬£¬½âµÃ?=?£¬ËùÒÔf(x)?cos(?x?)£¬?44?5?+??3???42Áî2k???x?¼äΪ£¨2k??4?2k???,k?Z£¬½âµÃ2k?13£¼x£¼2k?£¬k?Z£¬¹Êµ¥µ÷¼õÇø4413£¬2k?£©£¬k?Z£¬¹ÊÑ¡D. 44¿¼µã£ºÈý½Çº¯ÊýͼÏñÓëÐÔÖÊ

9.¡¾´ð°¸¡¿C

¡¾½âÎö¡¿Ö´ÐеÚ1´Î£¬t=0.01,S=1,n=0,m=£¾t=0.01,ÊÇ£¬Ñ­»·£¬

1m=0.5,S=S-m=0.5,m?=0.25,n=1,S=0.522m=0.125,n=2,S=0.25£¾t=0.01,ÊÇ£¬Ñ­»·£¬ 2mÖ´ÐеÚ3´Î£¬S=S-m=0.125,m?=0.0625,n=3,S=0.125£¾t=0.01,ÊÇ£¬Ñ­»·£¬

2mÖ´ÐеÚ4´Î£¬S=S-m=0.0625,m?=0.03125,n=4,S=0.0625£¾t=0.01,ÊÇ£¬Ñ­»·£¬

2mÖ´ÐеÚ5´Î£¬S=S-m=0.03125,m?=0.015625,n=5,S=0.03125£¾t=0.01,ÊÇ£¬Ñ­»·£¬

2mÖ´ÐеÚ6´Î£¬S=S-m=0.015625,m?=0.0078125,n=6,S=0.015625£¾t=0.01,ÊÇ£¬Ñ­»·£¬

2mÖ´ÐеÚ7´Î£¬S=S-m=0.0078125,m?=0.00390625,n=7,S=0.0078125£¾t=0.01,·ñ£¬

2Ö´ÐеÚ2´Î£¬S=S-m=0.25,m?Êä³ön=7£¬¹ÊÑ¡C.

¿¼µã£º±¾Ìâ×¢Ò⿼²é³ÌÐò¿òͼ 10.¡¾´ð°¸¡¿C

¡¾½âÎö¡¿ÔÚ(x?x?y)µÄ5¸öÒòʽÖУ¬2¸öÈ¡ÒòʽÖÐxÊ£ÓàµÄ3¸öÒòʽÖÐ1¸öÈ¡x£¬

212ÆäÓàÒòʽȡy,¹ÊxyµÄϵÊýΪC5C3C2=30£¬¹ÊÑ¡ C.

25252¿¼µã£º±¾ÌâÖ÷Òª¿¼²éÀûÓÃÅÅÁÐ×éºÏ֪ʶ¼ÆËã¶þÏîʽչ¿ªÊ½Ä³Ò»ÏîµÄϵÊý.

¡¾Ãûʦµã¾¦¡¿±¾ÌâÀûÓÃÅÅÁÐ×éºÏÇó¶àÏîÕ¹¿ªÊ½Ê½Ä³Ò»ÏîµÄϵÊý£¬ÊÔÌâÐÎʽÐÂÓ±£¬ÊÇÖеµÌ⣬Çó¶àÏîÕ¹¿ªÊ½Ê½Ä³Ò»ÏîµÄϵÊýÎÊÌ⣬ÏÈ·ÖÎö¸ÃÏîµÄ¹¹³É£¬½áºÏËù¸ø¶àÏîʽ£¬·ÖÎöÈç

ÊÔ¾íµÚ6Ò³£¬×Ü16Ò³

ºÎµÃµ½¸ÃÏÔÙÀûÓÃÅÅÁÐ×é֪ʶÇó½â. 11.¡¾´ð°¸¡¿B

¡¾½âÎö¡¿ÓÉÕýÊÓͼºÍ¸©ÊÓͼ֪£¬¸Ã¼¸ºÎÌåÊÇ°ëÇòÓë°ë¸öÔ²ÖùµÄ×éºÏÌ壬ԲÖùµÄ°ë¾¶ÓëÇòµÄ°ë¾¶¶¼Îªr£¬Ô²ÖùµÄ¸ßΪ2r£¬Æä±íÃæ»ýΪ

1?4?r2??r?2r??r2?2r?2r=25?r2?4r2=16 + 20?£¬½âµÃr=2£¬¹ÊÑ¡B.

¿¼µã£º¼òµ¥¼¸ºÎÌåµÄÈýÊÓͼ£»ÇòµÄ±íÃæ»ý¹«Ê½¡¢Ô²ÖùµÄ²âÃæ»ý¹«Ê½ 12.¡¾´ð°¸¡¿D

¡¾½âÎö¡¿Éèg(x)=ex(2x?1)£¬y?ax?a£¬ÓÉÌâÖª´æÔÚΨһµÄÕûÊýx0£¬Ê¹µÃg(x0)ÔÚÖ±Ïßy?ax?aµÄÏ·½.

ÒòΪg?(x)?ex(2x?1)£¬ËùÒÔµ±x???1ÒÔµ±x??ʱ£¬[g(x)]max=-2e2£¬

2111ʱ£¬g?(x)£¼0£¬µ±x??ʱ£¬g?(x)£¾0£¬Ëù22µ±x?0ʱ£¬g(0)=-1£¬g(1)?3e?0£¬Ö±Ïßy?ax?aºã¹ý£¨1,0£©Ð±ÂÊÇÒa£¬¹Ê

?a?g(0)??1£¬ÇÒg(?1)??3e?1??a?a£¬½âµÃ

3¡Üa£¼1£¬¹ÊÑ¡D. 2e

¿¼µã£º±¾ÌâÖ÷Ҫͨ¹ýÀûÓõ¼ÊýÑо¿º¯ÊýµÄͼÏñÓëÐÔÖʽâ¾ö²»µÈʽ³ÉÁ¢ÎÊÌâ

13.¡¾´ð°¸¡¿1

¡¾½âÎö¡¿ÓÉÌâÖªy?ln(x?a?x2)ÊÇÆ溯Êý£¬ËùÒÔln(x?a?x2)?ln(?x?a?x2) =ln(a?x?x)?lna?0£¬½âµÃa=1. ¿¼µã£ºº¯ÊýµÄÆæżÐÔ

2214.¡¾´ð°¸¡¿(x?)?y?223225 4222¡¾½âÎö¡¿ÉèÔ²ÐÄΪ£¨a£¬0£©£¬Ôò°ë¾¶Îª4?a£¬Ôò(4?a)?a?2£¬½âµÃa?22Ô²µÄ·½³ÌΪ(x?)?y?3£¬¹Ê23225. 4

¿¼µã£ºÍÖÔ²µÄ¼¸ºÎÐÔÖÊ£»Ô²µÄ±ê×¼·½³Ì

15.¡¾´ð°¸¡¿3

yÊÇ¿ÉÐÐÓòÄÚÒ»µãÓëÔ­xyµãÁ¬ÏßµÄбÂÊ£¬ÓÉͼ¿ÉÖª£¬µãA£¨1,3£©ÓëÔ­µãÁ¬ÏßµÄбÂÊ×î´ó£¬¹ÊµÄ×î´óֵΪ3.

x¡¾½âÎö¡¿×÷³ö¿ÉÐÐÓòÈçͼÖÐÒõÓ°²¿·ÖËùʾ£¬ÓÉбÂʵÄÒâÒåÖª£¬

¿¼µã£ºÏßÐԹ滮½â·¨

16.¡¾´ð°¸¡¿£¨6?2£¬6+2£©

¡¾½âÎö¡¿ÈçͼËùʾ£¬ÑÓ³¤BA£¬CD½»ÓÚE£¬Æ½ÒÆAD£¬µ±AÓëDÖغÏÓëEµãʱ£¬AB×£¬ÔÚ¡÷BCEÖУ¬¡ÏB=¡ÏC=75¡ã£¬¡ÏE=30¡ã£¬BC=2£¬ÓÉÕýÏÒ¶¨Àí¿ÉµÃ

BCBE?£¬¼´

sin?Esin?C2BE?£¬½âµÃBE=6+2£¬Æ½ÒÆAD £¬µ±DÓëCÖغÏʱ£¬AB×î¶Ì£¬´Ëʱ

sin30osin75oÓëAB½»ÓÚF£¬ÔÚ¡÷BCFÖУ¬¡ÏB=¡ÏBFC=75¡ã£¬¡ÏFCB=30¡ã£¬ÓÉÕýÏÒ¶¨ÀíÖª£¬

BFBCBF2??£¬¼´£¬½âµÃBF=6?2£¬ËùÒÔABµÄÈ¡Öµoosin?FCBsin?BFCsin30sin75·¶Î§Îª£¨6?2£¬6+2£©.

¿¼µã£ºÕýÓàÏÒ¶¨Àí£»ÊýÐνáºÏ˼Ïë

17.¡¾´ð°¸¡¿£¨¢ñ£©2n?1£¨¢ò£©¡¾½âÎö¡¿

ÊÔÌâ·ÖÎö£º£¨¢ñ£©ÏÈÓÃÊýÁеÚnÏîÓëÇ°nÏîºÍµÄ¹ØϵÇó³öÊýÁÐ{an}µÄµÝÍƹ«Ê½£¬¿ÉÒÔÅжÏÊýÁÐ{an}ÊǵȲîÊýÁУ¬ÀûÓõȲîÊýÁеÄͨÏʽ¼´¿Éд³öÊýÁÐ{an}µÄͨÏʽ£»£¨¢ò£©¸ù¾Ý£¨¢ñ£©ÊýÁÐ{bn}µÄͨÏʽ£¬ÔÙÓòðÏîÏûÈ¥·¨ÇóÆäÇ°nÏîºÍ.

2ÊÔÌâ½âÎö£º£¨¢ñ£©µ±n?1ʱ£¬a1?2a1?4S1?3?4a1+3£¬ÒòΪan?0£¬ËùÒÔa1=3£¬

11? 64n?6ÊÔ¾íµÚ8Ò³£¬×Ü16Ò³