·¢²¼Ê±¼ä : ÐÇÆÚÈÕ ÎÄÕÂ(8·ÝÊÔ¾íºÏ¼¯)2019-2020ѧÄêºþÄÏÊ¡»³»¯ÊÐÊýѧ¸ßÒ»µÚһѧÆÚÆÚĩѧҵˮƽ²âÊÔÄ£ÄâÊÔÌâ¸üÐÂÍê±Ï¿ªÊ¼ÔĶÁ1f8a0831988fcc22bcd126fff705cc1754275fd2
a1?R,?>0,i?1,2,3,...n))£¬Èôf2(0)?f2(r??)?0£¬ÇÒº¯Êýf(x)µÄͼÏó¹ØÓÚµã(,0)¶Ô³Æ£¬ÔÚx??2?2rr´¦È¡ µÃ×îСֵ£¬ÊÔ̽ÌÖ?Ó¦¸ÃÂú×ãµÄÌõ¼þ.
22£®ÒÑÖªÏòÁ¿a?(1,?1)£¬ÏòÁ¿bΪµ¥Î»ÏòÁ¿£¬ÏòÁ¿aÓëbµÄ¼Ð½ÇΪ?. £¨1£©ÈôÏòÁ¿aÓëÏòÁ¿b¹²Ïߣ¬Çóa?b£»
rrrrrrrr£¨2£©Èôa?3bÓëa´¹Ö±£¬Çócos2?.
23£®ÒÑÖªÔÚ¦¤ABCÖУ¬ÄÚ½ÇA,B,CµÄ¶Ô±ß·Ö±ðΪa,b,c£¬AΪÈñ½Ç£¬ÇÒÂú×ã3b?5asinB.
£¨1£©Çósin2A?cos£¨2£©Èôa?2B?CµÄÖµ£» 232,¦¤ABCµÄÃæ»ýΪ£¬Çób,c.
224£®ÔÚ¡÷ABCÖУ¬ÄÚ½ÇA,B,CËù¶ÔµÄ±ß·Ö±ðΪa,b,c.ÒÑÖªasinA?4bsinB£¬ac?5(a2?b2?c2). £¨I£©ÇócosAµÄÖµ£» £¨II£©Çósin(2B?A)µÄÖµ.
25£®¸ø¶¨Çø¼äI£¬¼¯ºÏMÊÇÂú×ãÏÂÁÐÐÔÖʵĺ¯Êýf(x)µÄ¼¯ºÏ£ºÈÎÒâx?I£¬f(x?1)?2f(x)£®
x£¨1£©ÒÑÖªI?R£¬f(x)?3£¬ÇóÖ¤£º f(x)?M£»
£¨2£©ÒÑÖªI?(0,1]£¬g(x)?a?log2x£®Èôg(x)?M£¬ÇóʵÊýaµÄÈ¡Öµ·¶Î§£»
2£¨3£©ÒÑÖªI?[?1,1]£¬h(x)??x?ax?a?5 (a?R)£¬ÌÖÂÛº¯Êýh(x)Ó뼯ºÏMµÄ¹Øϵ£®
¡¾²Î¿¼´ð°¸¡¿
Ò»¡¢Ñ¡ÔñÌâ 1£®C 2£®D 3£®C 4£®D 5£®A 6£®D 7£®B 8£®D 9£®C 10£®B 11£®A 12£®A 13£®C 14£®D 15£®D ¶þ¡¢Ìî¿ÕÌâ
16£®
33 2317£®?2,4? 18£®??3 419£®12 Èý¡¢½â´ðÌâ
20£®63.9m 21£®£¨1£©??k????1??,k?Z£»£¨2£©???k??,k??arctan?,k?Z£»£¨3£©??2k?1,k?N*.
2?22?22£®£¨1£©?2£¨2£©?59 23£®£¨¢ñ£©
5350 £¨¢ò£© b?c?5 24£®£¨¢ñ£©?5255£¨¢ò£©?5 25£®£¨1£©ÏêÂÔ£»£¨2£©a?1£»£¨3£©ÏêÂÔ.
¸ßÒ»ÊýѧÆÚÄ©Ä£ÄâÊÔ¾í
×¢ÒâÊÂÏ
1. ´ðÌâÇ°£¬¿¼ÉúÏȽ«×Ô¼ºµÄÐÕÃû¡¢×¼¿¼Ö¤ºÅÌîдÇå³þ£¬½«ÌõÐÎÂë׼ȷճÌùÔÚ¿¼ÉúÐÅÏ¢ÌõÐÎÂëÕ³ÌùÇø¡£ 2£®Ñ¡ÔñÌâ±ØÐëʹÓÃ2BǦ±ÊÌîÍ¿£»·ÇÑ¡ÔñÌâ±ØÐëʹÓÃ0.5ºÁÃ׺ÚÉ«×Ö¼£µÄÇ©×Ö±ÊÊéд£¬×ÖÌ幤Õû¡¢±Ê¼£Çå³þ¡£
3£®Çë°´ÕÕÌâºÅ˳ÐòÔÚ¸÷ÌâÄ¿µÄ´ðÌâÇøÓòÄÚ×÷´ð£¬³¬³ö´ðÌâÇøÓòÊéдµÄ´ð°¸ÎÞЧ£»ÔڲݸåÖ½¡¢ÊÔÌâ¾íÉÏ´ðÌâÎÞЧ¡£
4£®±£³Ö¿¨ÃæÇå½à£¬²»ÒªÕÛµþ£¬²»ÒªÅªÆÆ¡¢ÅªÖ壬²»×¼Ê¹ÓÃÍ¿¸ÄÒº¡¢ÐÞÕý´ø¡¢¹ÎÖ½µ¶¡£
Ò»¡¢Ñ¡ÔñÌâ
1£®ÔÚ?ABCÖУ¬½ÇA,B,CµÄ¶Ô±ß·Ö±ðΪa,b,c£¬ÈôÊÇ£¨ £© A£®5
B£®8
C£®7 ÄÚ½ÓÓÚÔ²£¬Îª
D£®6
±ßÖе㣬Ϊ
±ßÖе㣬Ôò
Ϊ
111322??£¬Ôòa?b?2µÄ×îСֵtanAtanBtanCc2£®Èçͼ£¬ÒÑÖª±ß³¤ÎªµÄÕýÈý½ÇÐΣ¨ £©
A. B. C.
22D.
3£®ÔÚƽÃæÖ±½Ç×ø±êϵxOyÖУ¬Ö±Ïßy?kx?4ÓëÔ²x?y?4½»ÓÚA,BÁ½µã£¬ÇÒOA?OB?0£¬Ôòk?£¨ £© A£®?2»ò2
B£®?3»ò3 C£®?5»ò5 D£®?7»ò7
uuuruuur4£®Ä³Ñ§Ð£ÎªÁ˽â1 000ÃûÐÂÉúµÄÉíÌåËØÖÊ£¬½«ÕâЩѧÉú±àºÅΪ1£¬2£¬¡£¬1 000£¬´ÓÕâЩÐÂÉúÖÐÓÃϵͳ³éÑù·½·¨µÈ¾à³éÈ¡100ÃûѧÉú½øÐÐÌåÖʲâÑ飬Èô46ºÅѧÉú±»³éµ½£¬ÔòÏÂÃæ4ÃûѧÉúÖб»³éµ½µÄÊÇ A£®8ºÅѧÉú 5£®º¯ÊýA.
B£®200ºÅѧÉú
C£®616ºÅѧÉú
D£®815ºÅѧÉú
µÄÁãµãËùÔÚµÄÇø¼äÊÇ£¨ £© B.
C.
D.
x6£®ÒÑ֪ʵÊýaÂú×ã3a?5£¬Ôòº¯Êýf(x)?a?2x?log53µÄÁãµãÔÚÏÂÁÐÄĸöÇø¼äÄÚ
A£®(?2,?1) B£®(?1,0) C£®(0,1) D£®(1,2)
xµÄ·½³Ìf(x)?kÓÐÁ½¸ö²»Í¬µÄ¸ùx1£¬x2£¬7£®ÒÑÖªº¯Êýf(x)?log2x?1£¬Èô´æÔÚʵÊý k£¬Ê¹µÃ¹ØÓÚ
Ôòx1?x2µÄֵΪ£¨ £© A.1 8£®ÈôA£®
£¬Ôò
B£®B.2
C£®
D£®
C.4
D.²»È·¶¨
9£®ÒÑÖªº¯Êýf(x)?sin(2x?A£®f(x)µÄÒ»¸öÖÜÆÚΪ?? B£®f(x)µÄͼÏñ¹ØÓÚµã(?2?)£¬ÔòÏÂÁнáÂÛ´íÎóµÄÊÇ£¨ £© 35?,0)¶Ô³Æ 6C£®f(x)µÄͼÏñ¹ØÓÚÖ±Ïßx??D£®f(x)ÔÚÇø¼ä(??12¶Ô³Æ
??3,)µÄÖµÓòΪ[?,1] 332B£®?1,4,5?
210£®É輯ºÏU??1,2,3,4,5?,A??1,2,3?,B??2,3,4?£¬ÔòeU?A?B??( ) A£®?2,3?
C£®?4,5?
D£®?1,5?
11£®ÒÑÖª¼¯ºÏM?1,aA.{0,1}
??£¬P???1,?a?£¬ÈôM?PÓÐÈý¸öÔªËØ£¬ÔòM?P?£¨ £©
B.{?1,0}
C.{0}
D.{?1}
12£®ÎªÁËÁ˽âijͬѧµÄÊýѧѧϰÇé¿ö£¬¶ÔËûµÄ6´ÎÊýѧ²âÊԳɼ¨½øÐÐͳ¼Æ£¬×÷³öµÄ¾¥Ò¶Í¼ÈçͼËùʾ£¬ÔòÏÂÁйØÓÚ¸ÃͬѧÊýѧ³É¼¨µÄ˵·¨ÕýÈ·µÄÊÇ( )
A£®ÖÐλÊýΪ83 B£®ÖÚÊýΪ85 C£®Æ½¾ùÊýΪ85 D£®·½²îΪ19
13£®ÔڵȲîÊýÁÐ?an?ÖÐ,a1?2,a3?a5?10£¬Ôòa7?£¨ £© A£®5 A£®28
B£®8
2
2
3
3
C£®10
4
4
5
5
D£®14
10
10
14£®¹Û²ìÏÂÁи÷ʽ£ºa+b=1.a+b=3£¬a+b=4 £¬a+b=7,a+b=11,¡£¬Ôòa+b=£¨ £©
B£®76
C£®123
D£®199
15£®Èô¸´Êýa2?3a?2??a?1?iÊÇ´¿ÐéÊý£¬ÔòʵÊýaµÄֵΪ£¨ £© A£®1 B£®2 C£®1»ò2 D£®-1 ¶þ¡¢Ìî¿ÕÌâ
16£®µ±ÇúÏßy?1?4?x2ÓëÖ±Ïßy?k(x?2)?4ÓÐÁ½¸öÏàÒì½»µãʱ£¬ÊµÊýkµÄÈ¡Öµ·¶Î§ÊÇ________£®
???2x?a,x?117£®Èôº¯Êýf(x)??2Ç¡ÓÐ2¸öÁãµã£¬ÔòaµÄÈ¡Öµ·¶Î§ÊÇ__________£® 2?x?4ax?3a,x?118£®ÒÑÖª¹ØÓڦȵķ½³Ìsin??3cos??a?0ÔÚÇø¼ä?0£¬??ÉÏÓÐÁ½¸ö²»ÏàµÈµÄʵÊý¸ù¦Á¡¢¦Â£¬Ôò
cos???2?__________.
19£®ÒÑÖª??(0,?)ÇÒcos(??Èý¡¢½â´ðÌâ
?3)?£®Çócos??_________. 6520£®ÒÑÖª¼¯ºÏA??x|?3?x?4?£¬¼¯ºÏB??x|2m?1?x?m?1?£® £¨1£©µ±m??3ʱ£¬Ç󼯺ÏA?B£» £¨2£©µ±B?Aʱ£¬ÇóʵÊýmµÄÈ¡Öµ·¶Î§£® 21£®ÒÑÖªº¯Êý
£®