µÚÒ»·¶ÎÄÍø - רҵÎÄÕ·¶ÀýÎĵµ×ÊÁÏ·ÖÏíÆ½Ì¨

±±¾©Êк£µíÇø2018-2019ѧÄêÏÂѧÆÚ¸ßÒ»ÆÚÖп¼ÊÔÊýѧÊÔÌ⺬´ð°¸

À´Ô´£ºÓû§·ÖÏí ʱ¼ä£º2025/8/26 3:26:05 ±¾ÎÄÓÉloading ·ÖÏí ÏÂÔØÕâÆªÎĵµÊÖ»ú°æ
˵Ã÷£ºÎÄÕÂÄÚÈݽö¹©Ô¤ÀÀ£¬²¿·ÖÄÚÈÝ¿ÉÄܲ»È«£¬ÐèÒªÍêÕûÎĵµ»òÕßÐèÒª¸´ÖÆÄÚÈÝ£¬ÇëÏÂÔØwordºóʹÓá£ÏÂÔØwordÓÐÎÊÌâÇëÌí¼Ó΢ÐźÅ:xxxxxxx»òQQ£ºxxxxxx ´¦Àí£¨¾¡¿ÉÄܸøÄúÌṩÍêÕûÎĵµ£©£¬¸ÐлÄúµÄÖ§³ÖÓëÁ½⡣

ÆäÖÐQi£¨i?1,2,,k£¬k?3£©Îª¶àÃæÌåMµÄËùÓÐÓëµãPÏàÁڵĶ¥µã£¬ÇÒÆ½ÃæQ1PQ2,Æ½Ãæ

Q2PQ3,

,Æ½ÃæQk?1PQkºÍÆ½ÃæQkPQ1±éÀú¶àÃæÌåMµÄËùÓÐÒÔPΪ¹«¹²µãµÄÃæ.

£¨¢ñ£©ÈÎÈ¡ÕýËÄÃæÌåµÄÒ»¸ö¶¥µã£¬¸Ãµã´¦µÄÀëÉ¢ÇúÂÊΪ______£» £¨¢ò£©Èçͼ1£¬ÒÑÖª³¤·½ÌåA1B1C1D1?ABCD£¬AB?BC?1£¬AA1?2£¬µãPΪµ×Ãæ2A1B1C1D1ÄÚµÄÒ»¸ö¶¯µã£¬ÔòËÄÀâ×¶P?ABCDÔÚµãP´¦µÄÀëÉ¢ÇúÂʵÄ×îСֵΪ______£»

D1A1DPB1C1C¦Â¦ÁAB

ͼ2

ͼ1

£¨¢ó£©Í¼2Ϊ¶Ôij¸öÅ®º¢Ã沿ʶ±ð¹ý³ÌÖеÄÈý½ÇÆÊ·Ö½á¹û£¬ËùνÈý½ÇÆÊ·Ö£¬¾ÍÊÇÏÈÔÚÃæ²¿È¡Èô

¸É²ÉÑùµã£¬È»ºóÓöÌСµÄÖ±Ïß¶ÎÁ¬½ÓÏàÁÚÈý¸ö²ÉÑùµãÐγÉÈý½ÇÐÎÍø¸ñ.ÇøÓò?ºÍÇøÓò?ÖеãµÄÀëÉ¢ÇúÂÊµÄÆ½¾ùÖµ¸ü´óµÄÊÇ_______.£¨Ìîд¡°ÇøÓò?¡±»ò¡°ÇøÓò?¡±£©

5

¸ßÒ»Äê¼¶µÚ¶þѧÆÚÆÚÖÐͳһÁ·Ï°

Êý ѧ

²Î¿¼´ð°¸¼°ÆÀ·Ö±ê×¼ 2019£®04

Ò». Ñ¡ÔñÌ⣺±¾´óÌâ¹²8СÌ⣬ÿСÌâ4·Ö£¬¹²32·Ö. ÌâºÅ ´ð°¸ £¨1£© B £¨2£© B £¨3£© C £¨4£© D £¨5£© D £¨6£© A £¨7£© A £¨8£© B ¶þ.Ìî¿ÕÌ⣺±¾´óÌâ¹²6СÌ⣬ÿСÌâ4·Ö£¬¹²24·Ö. £¨9£©4¦Ð £¨10£©

¦Ð £¨11£©1 6£¨12£©

¦Ð £¨13£©3£¨2?b?4¼´¿É£© £¨14£©¢Ù¢Ú¢Û¢Ü 4×¢£º(14)ÿÌî³öÒ»¸öÑ¡Ïî¾ÍµÃ1·Ö¡£

Èý.½â´ðÌ⣺±¾´óÌâ¹²4СÌ⣬¹²44·Ö.½â´ðӦд³öÎÄ×Ö˵Ã÷£¬Ö¤Ã÷¹ý³Ì»òÑÝËã²½Öè. £¨15£©£¨±¾Ð¡ÌâÂú·Ö11·Ö£©

2½â£º£¨¢ñ£© f(x)?2cosxsinx?3(2cosx?1)

=sin2x?3cos2x ¡­¡­¡­¡­¡­¡­2·Ö

13?2(sin2x?cosx)

22??2sin(2x?). ¡­¡­¡­¡­¡­¡­4·Ö

3

2???. ¡­¡­¡­¡­¡­¡­5·Ö 2??º¯Êýy?sinxµÄµ¥µ÷µÝÔöÇø¼äΪ[?+2k?,+2k?](k?Z). ¡­¡­¡­¡­¡­¡­6·Ö

22???ÓÉ ?+2k??2x??+2k??k?Z)µÃ

232?5??+k??x?+k?£¨k?Z£©. 1212?5?+k?](k?Z). ¡­¡­¡­¡­¡­¡­7·Ö ËùÒÔ º¯Êýf(x)µÄµ¥µ÷µÝÔöÇø¼äΪ[?+k?,1212?£¨¢ò£©ÒòΪ x?[0,]£¬

2??2?]. ¡­¡­¡­¡­¡­¡­8·Ö ËùÒÔ 2x??[?,333 ËùÒÔ º¯Êýf(x)µÄ×îСÕýÖÜÆÚT?6

ËùÒÔ ?3??sin(2x?)?1. 23ËùÒÔ ?3?2sin(2x?)?2.

ËùÒÔ º¯Êýf(x)ÔÚÇø¼ä[0,]ÉϵÄȡֵ·¶Î§ÊÇ[?3,2]. ¡­¡­¡­¡­¡­¡­11·Ö

£¨16£©£¨±¾Ð¡ÌâÂú·Ö11·Ö£© ½â£º£¨¢ñ£©ÒòΪ AD?2 ,AC??3¦Ð27 ,?ADC?60?£¬

AD?sin?ADC21ACAD?µÃ£ºsinC=. =AC7sin?ADCsinCËùÒÔ ÔÚ¡÷ADCÖУ¬ÓÉ

¡­¡­¡­¡­¡­¡­3·Ö ÒòΪ AD?AC £¬ ËùÒÔ ?C?(0,).

¦Ð2ËùÒÔ cosC?1?sinC?227. ¡­¡­¡­¡­¡­¡­5·Ö 7£¨¢ò£©ÒòΪ ¡÷ABDµÄÃæ»ýΪ

3£¬ 2ËùÒÔ S¡÷ABD?113AD?BD?sin?ADB??2?BD?sin120?. 222ËùÒÔ BD?1. ¡­¡­¡­¡­¡­¡­7·Ö ÔÚ¡÷ADBÖУ¬ÓÉÓàÏÒ¶¨ÀíµÃ

AB2?DA2?DB2?2DA?DB?cos?ADB?7.

ËùÒÔ AB?7. ¡­¡­¡­¡­¡­¡­9·Ö

ËùÒÔ ¡÷ABCΪµÈÑüÈý½ÇÐÎ.

ËùÒÔ sin?BAC?sin180?2C=sin2C

???2sinCcosC?2? £¨17£©£¨±¾Ð¡ÌâÂú·Ö12·Ö£©

7

212743??. ¡­¡­¡­¡­¡­¡­11·Ö 777£¨¢ñ£©Ö¤Ã÷£ºÒòΪ ËıßÐÎABCDÊÇÁâÐΣ¬

ËùÒÔ AD//BC. ¡­¡­¡­¡­¡­¡­1·Ö ÒòΪ AD?Æ½ÃæPBC£¬BC?Æ½ÃæPBC£¬

ËùÒÔ AD//Æ½ÃæPBC. ¡­¡­¡­¡­¡­¡­3·Ö

£¨¢ò£©Ö¤Ã÷£ºÉèACBD?O.

PÒòΪ ËıßÐÎABCDÊÇÁâÐΣ¬ ËùÒÔ AC?BD£¬

DO?OB. ¡­¡­¡­¡­¡­¡­4·Ö

ÒòΪ PB?PD£¬ ËùÒÔ

ADOBCPO?BD. ¡­¡­¡­¡­¡­¡­5·Ö

ÒòΪ ACPO?O£¬PO?Æ½ÃæPAC£¬

ËùÒÔ BD?Æ½ÃæPAC. ¡­¡­¡­¡­¡­¡­7·Ö

£¨¢ó£©¢Ù¹ýF×÷FG//DC½»PCÓÚG£¬Á¬½ÓBG. ¡­¡­¡­¡­¡­¡­8·Ö ÔÚÁâÐÎABCDÖУ¬ AB?DC£¬AB//DC. ËùÒÔ FG//AB. ËùÒÔ E,F,G,B¹²Ãæ.

FGPÒòΪ EF//Æ½ÃæPBC£¬

Æ½ÃæFEBGÆ½ÃæPB?CBG£¬

AEDCBËùÒÔ EF//BG. ¡­¡­¡­¡­¡­¡­10·Ö ËùÒÔ ËıßÐÎFEBGΪƽÐÐËıßÐÎ. ËùÒÔ EB?FG. ÒòΪ AE?2EB£¬ ËùÒÔ

PFFGEB1===. ¡­¡­¡­¡­¡­¡­11·Ö PDDCAB3¢Ú¡÷PAD²»¿ÉÄÜΪµÈÑüÈý½ÇÐΣ¬ÀíÓÉÈçÏ£º ¡­¡­¡­¡­¡­¡­8·Ö ×÷BQ?AD½»ADÓÚµãQ£¬Á¬½ÓPQ.

8

±±¾©Êк£µíÇø2018-2019ѧÄêÏÂѧÆÚ¸ßÒ»ÆÚÖп¼ÊÔÊýѧÊÔÌ⺬´ð°¸.doc ½«±¾ÎĵÄWordÎĵµÏÂÔØµ½µçÄÔ£¬·½±ã¸´ÖÆ¡¢±à¼­¡¢ÊղغʹòÓ¡
±¾ÎÄÁ´½Ó£ºhttps://www.diyifanwen.net/c6lq4j2f6lp8uhsm07tfq670et7c26i01762_2.html£¨×ªÔØÇë×¢Ã÷ÎÄÕÂÀ´Ô´£©

Ïà¹ØÍÆ¼ö£º

ÈÈÃÅÍÆ¼ö
Copyright © 2012-2023 µÚÒ»·¶ÎÄÍø °æÈ¨ËùÓÐ ÃâÔðÉùÃ÷ | ÁªÏµÎÒÃÇ
ÉùÃ÷ :±¾ÍøÕ¾×ðÖØ²¢±£»¤ÖªÊ¶²úȨ£¬¸ù¾Ý¡¶ÐÅÏ¢ÍøÂç´«²¥È¨±£»¤ÌõÀý¡·£¬Èç¹ûÎÒÃÇ×ªÔØµÄ×÷Æ·ÇÖ·¸ÁËÄúµÄȨÀû,ÇëÔÚÒ»¸öÔÂÄÚ֪ͨÎÒÃÇ£¬ÎÒÃǻἰʱɾ³ý¡£
¿Í·þQQ£ºxxxxxx ÓÊÏ䣺xxxxxx@qq.com
ÓåICP±¸2023013149ºÅ
Top