(¸ß¶þÏÂÊýѧÆÚÄ©20·ÝºÏ¼¯)ɽ¶«Ê¡ÇൺÊи߶þÏÂѧÆÚÊýѧÆÚÄ©ÊÔ¾íºÏ¼¯ ÏÂÔØ±¾ÎÄ

¼´ËùÒÔ£¬µ±

ʱ£¬

£¬¹Ê£¬£¬

£®

ËùÒÔ

£®×ÛÉÏ£¬ÊýÁÐ

µÄǰÏîºÍ

£®

£¨ÓôíλÏà¼õ·¨Ò²¿É£©

¿¼µã£º1¡¢µÈ²îÊýÁеÄͨÏʽ£»2¡¢´íλÏà¼õ·¨ÇóÊýÁеÄǰÏîºÍ£®

22. £¨±¾Ð¡ÌâÂú·Ö12·Ö£©ÒÑÖªÊýÁУ¨¢ñ£©ÇóÖ¤£º£¨¢ò£©Ö¤Ã÷£º£¨¢ó£©ÇóÖ¤£º

£»

£»

£® Âú×㣺

£¬

£¨

£©£®

¡¾´ð°¸¡¿(1)Ïê¼û½âÎö;(2) Ïê¼û½âÎö;(3) Ïê¼û½âÎö. ¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£º£¨I£©È·¶¨ÊýÁеĵ¥µ÷ÐÔ£¬Ò×Ö¤µÃ£ºÊÔÌâ½âÎö£º £¨I£©

£¨¢ò£©ÓÉ£¨¢ñ£©¿ÉµÃ£º£¨¢ó£©Ò»·½ÃæÓÉÓÉ£¨¢ò£©µÃ£ºËùÒÔÀۼӵãºÁíÒ»·½ÃæÓÉ

¿ÉµÃ£ºÔ­Ê½±äÐÎΪ

ËùÒÔ£ºÀÛ¼ÓµÃ

¿ÉµÃ

£¬

£¬

£¬ËùÒÔ

£¬ÀÛ¼ÓµÃ×ó²à.

...

£¬ÀÛ¼ÓµÃÓҲࣻÁí

£¬

£¬.

£»£¨II£©ÓÉ£¨¢ñ£©Ò×µÃ

£»£¨¢ó£©ÓÉ£¨¢ò£©

¸ß¶þÏÂѧÆÚÆÚÄ©ÊýѧÊÔ¾í

Ò»¡¢Ñ¡ÔñÌ⣺±¾´óÌâ¹²12СÌ⣬ÿСÌâ5·Ö£¬¹²60·Ö£¬ÔÚÿСÌâ¸ø³öµÄËĸöÑ¡ÏîÖУ¬Ö»ÓÐÒ»ÏîÊÇ×î·ûºÏÌâÄ¿

ÒªÇóµÄ¡£

1¡¢ÒÑÖª¼¯ºÏM?xlgx2?0£¬N?x2 A£®

????1?2x?1?22£¬x?Z£¬ÔòMC£®?0?

?N?

£¬??11? B£®??1? 0? D£®??1£¬2¡¢ÒÑÖªf(x)ÊǶ¨ÒåÔÚRÉϵÄżº¯Êý£¬ÇÒÒÔ2ΪÖÜÆÚ£¬Ôò¡°f(x)Ϊ[1£¬2]ÉϵÄÔöº¯Êý¡±ÊÇ¡°f(x)Ϊ[4£¬5]ÉÏ

µÄ¼õº¯Êý¡±µÄ

A£®³ä·Ö²»±ØÒªÌõ¼þ C£®³äÒªÌõ¼þ

B£®±ØÒª²»³ä·ÖÌõ¼þ D£®¼È²»³ä·ÖÒ²²»±ØÒªÌõ¼þ

?1x?(),?1?x?03¡¢Èôº¯Êýf(x)??4£¬Ôòf(log43)? x?0?x?1?4,A£®

1 3xB£®

4 3C£®3 D£®4

4¡¢ÒÑÖªµã(a,b)ÔÚy?10ͼÏóÉÏ£¬ÔòÏÂÁеãÖв»¿ÉÄÜÔÚ´ËͼÏóÉϵÄÊÇ A£®(?a,)

1bB£®(a?1,10b) C£®(a?1,10b) D£®(2a,b)

25¡¢º¯Êýf(x)?ex?A£®(0,

1µÄÁãµãËùÔÚµÄÇø¼äÊÇ x1

) 2

B£®(,1) C£®(1,3x1233) D£®(,2)

226¡¢º¯Êýf(x)?x?8,g(x)?3?1£¬Ôò²»µÈʽf[g(x)]?0µÄ½â¼¯ÊÇ

A£®[1,??)

B£®[ln3,??)

C£®[1£¬ln3]

D£®[log32,??)

ex?17¡¢¸ø¶¨ÃüÌâp£ºº¯Êýy?ln[(1?x)(1?x)]Ϊżº¯Êý£»ÃüÌâq£ºº¯Êýy?xΪżº¯Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

e?1

2A£®C£®

ÊǼÙÃüÌâ ÊÇÕæÃüÌâ

?14B£®D£®

ÊǼ٠ÊÇÕæ

8¡¢ÒÑÖªº¯Êýy?(mx?4x?m?2)A£®

?(m2?mx?1)µÄ¶¨ÒåÓòΪR,ÔòmµÄȡֵ·¶Î§ÊÇ

?5?1,?? B£®

??5?1,2 C£®(-2,2) D£®(?1?5,?1?5)

?9¡¢y?x2?5x?6µÄ¶¨ÒåÓòΪ

ln(x?1) B£®(1,2]

A£®[3,??)

C£®(1,2]?[3,??) D£®(1,2)?[3,??)

A B C D 11¡¢Éèf (x)£½lg2?xx2£¬Ôòf()?f()µÄ¶¨ÒåÓòΪ£¨ £© 2?x2xA£® B£®(£­4,£­1)?(1£¬4) £¨£­4£¬0£©?£¨0£¬4£©C£®(£­2,£­1)?(1£¬2) D£®(£­4,£­2)?(2£¬4)

12¡¢ÒÑÖª¶¨ÒåÔÚRÉÏµÄÆæº¯Êýf(x)£¬Âú×ãf(x?4)??f(x),ÇÒÔÚÇø¼ä[0,2]ÉÏÊÇÔöº¯Êý,Ôò A. f(?25)?f(80)?f(11) B. f(80)?f(11)?f(?25) C. f(11)?f(80)?f(?25) D. f(?25)?f(11)?f(80)

µÚ¢ò¾í£¨·ÇÑ¡ÔñÌ⣬¹²90·Ö£©

¶þ¡¢Ìî¿ÕÌ⣺(±¾´óÌâ¹²4СÌ⣬ÿСÌâ5·Ö£¬¹²20·Ö¡£)

13¡¢ÒÑÖªº¯Êýf(x)Âú×ãf(x)?f(x?2)?2014£¬Èôf(0)?1£¬Ôòf(2014)?____.

?x?2,x?0?,Ôòº¯Êýg(x)?f(x)?xµÄÁãµãµÄ¸öÊýÊÇ ¸ö. 14¡¢ÒÑÖªº¯Êýf(x)??21?x?x?1,x?0??215¡¢É輯ºÏA?(??,a],B?(b,??),a?N,b?R,ÇÒA . 16¡¢ÉèP£º¹ØÓÚxµÄ²»µÈʽ2xBN?{2},Ôòa?bµÄÈ¡ÖµÇø¼äÊÇ

?aµÄ½â¼¯Îª?£¬Q£ºº¯Êýy?lg(ax2?x?a)µÄ¶¨ÒåÓòΪR£¬Èç¹ûPºÍQÓÐ

ÇÒ½öÓÐÒ»¸öÕýÈ·£¬ÔòaµÄÈ¡ÖµÇø¼äÊÇ .

Èý¡¢½â´ðÌ⣺(±¾´óÌâ¹²6СÌ⣬¹²70·Ö£¬½â´ðӦд³öÎÄ×Ö˵Ã÷£¬Ö¤Ã÷¹ý³Ì»òÑÝËã²½Öè¡£) 17¡¢ £¨±¾Ð¡ÌâÂú·Ö10·Ö£©

2ÒÑÖªº¯Êýy?x?4ax?2a?6(a?R)£¬Èôy?0ºã³ÉÁ¢£¬Çóf(a)?2?aa?3µÄÖµÓò

18¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£© ¼Çº¯Êýf(x)?2?x?3µÄ¶¨ÒåÓòΪA£¬g(x)?lg[(x?a?1)(2a?x)](a?1)µÄ¶¨ÒåÓòΪB£® x?1(1) Ç󼯺ÏA£»

(2) ÈôB?A, ÇóʵÊýaµÄȡֵ·¶Î§£®

19¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©

ÒÑÖª¶þ´Îº¯Êýf(x)µÄ¶þ´ÎÏîϵÊýΪa£¬ÇÒ²»µÈʽf(x)£¾?2xµÄ½â¼¯Îª£¨1£¬3£©.

(1) Èô·½³Ìf(x)?6a?0ÓÐÁ½¸öÏàµÈµÄ¸ù,Çóf(x)µÄ½âÎöʽ; (2) Èôf(x)µÄ×î´óֵΪÕýÊý,ÇóaµÄȡֵ·¶Î§. 20¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©

x2?ax?4ÒÑÖªº¯Êýf(x)?(x?0)

x£¨1£©Èôf(x)ÎªÆæº¯Êý£¬ÇóaµÄÖµ£»

£¨2£©Èôf(x)ÔÚ[3,??)ÉϺã´óÓÚ0£¬ÇóaµÄȡֵ·¶Î§¡£ 21¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©

ÒÑÖªf(x)?logax,g(x)?2loga(2x?t?2),(a?0,a?1,t?R)

(1)µ±t?4,x??1,2?,ÇÒF(x)?g(x)?f(x)µÄ×îСֵΪ2ʱ£¬ÇóaµÄÖµ£» (2)µ±0?a?1,x??1,2?ʱ£¬ÓÐf(x)?g(x)ºã³ÉÁ¢£¬ÇóʵÊýtµÄȡֵ·¶Î§. 22¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©

ÒÑÖªº¯Êýg(x)?ax?2ax?1?b (a?0,b?1)£¬ÔÚÇø¼ä[2,23]ÉÏÓÐ×î´óÖµ4£¬×îСֵ1£¬É躯Êý

f(x)?

g(x)£® x£¨1£©Çóa¡¢bµÄÖµ¼°º¯Êýf(x)µÄ½âÎöʽ£»

£¨2£©Èô²»µÈʽf(2)?k?2?0ÔÚx?[?1,1]ʱºã³ÉÁ¢£¬ÇóʵÊýkµÄȡֵ·¶Î§£»

xx

£¨3£©Èç¹û¹ØÓÚxµÄ·½³Ìf(2?1)?t?(x42?1x?3)?0ÓÐÈý¸öÏàÒìµÄʵÊý¸ù£¬ÇóʵÊýtµÄȡֵ·¶Î§£®