ÄúÏÖÔÚµÄλÖãºÖп¼ > Öп¼±¸¿¼ > Öп¼¸´Ï° > Öп¼Êýѧ
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®ËıßÐΣ¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Ò×´íµã1£ºÆ½ÐÐËıßÐεÄÐÔÖʺÍÅж¨£¬ÈçºÎÁé»î¡¢Ç¡µ±µØÓ¦Óá£Èý½ÇÐεÄÎȶ¨ÐÔÓëËıßÐβ»Îȶ¨ÐÔ¡£ Ò×´íµã2£ºÆ½ÐÐËıßÐÎ×¢ÒâÓëÈý½ÇÐÎ
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý½ÇÐΣ¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Ò×´íµã1£ºÈý½ÇÐεĸÅÄîÒÔ¼°Èý½ÇÐÎµÄ½ÇÆ½·ÖÏߣ¬ÖÐÏߣ¬¸ßÏßµÄÌØÕ÷ÓëÇø±ð¡£ Ò×´íµã2£ºÈý½ÇÐÎÈý±ßÖ®¼äµÄ²»µÈ¹ØÏµ£¬×¢ÒâÆäÖÐµÄ ÈκÎÁ½
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Òòʽ¶¨Àí£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Òòʽ¶¨Àí¡¢×ۺϳý·¨·Ö½âÒòʽ ¶ÔÓÚÕûϵÊýÒ»Ôª¶àÏîʽf(x)=anxn+an-1xn-1+ +a1x+a0 ÓÉÒòʽ¶¨Àí¿ÉÏÈÅжÏËüÊÇ·ñº¬ÓÐÒ»´ÎÒòʽ(x-)£¨
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®´¹ÏßµÄÐÔÖÊ£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ 1¡¢´¹ÏßµÄÐÔÖÊ£º ¢Å¹ýÒ»µãÓÐÇÒÖ»ÓÐÒ»ÌõÖ±ÏßÓëÒÑÖªÖ±Ïß´¹Ö±¡£ ¢ÆÁ¬½ÓÖ±ÏßÍâÒ»µãÓëÖ±ÏßÉϸ÷µãµÄËùÔÚÏß¶ÎÖУ¬´¹Ïß¶Î×î¶Ì¡£ 2.¡¢
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®¶Ô³ÆÖᣬϣÒí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ 1.¶Ô³ÆÖá:Èç¹ûÒ»¸öͼÐÎÑØÄ³ÌõÖ±ÏßÕÛµþºó£¬Ö±ÏßÁ½ÅԵIJ¿·ÖÄܹ»»¥ÏàÖØºÏ£¬ÄÇôÕâ¸öͼÐνÐ×öÖá¶Ô³ÆÍ¼ÐÎ;ÕâÌõÖ±Ïß½Ð×ö¶Ô³ÆÖá¡£ 2.ÐÔ
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èñ½ÇÈý½Çº¯Êý£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Èñ½ÇÈý½Çº¯ÊýµÄ¶¨Òå Èñ½Ç½ÇAµÄÕýÏÒ£¨sin£©,ÓàÏÒ£¨cos£©ºÍÕýÇУ¨tan£©,ÓàÇУ¨cot£©ÒÔ¼°Õý¸î£¨sec£©£¬£¨Óà¸îcsc£©¶¼½Ð×ö½ÇA
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý½Çº¯Êý¹«Ê½²Î¿¼£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Á½½ÇºÍ¹«Ê½ sin(A+B)=sinAcosB+cosAsinBsin(A-B)=sinAcosB-sinBcosA cos(A+B)=cosAcosB-sinAsinBcos(A-B)=cosAcosB+si
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Õý¸îµÄ»ù´¡¹«Ê½£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ ijֱ½ÇÈý½ÇÐÎÖУ¬Ò»¸öÈñ½ÇµÄб±ßÓëÆäÁڱߵıÈ(¼´½ÇAб±ß±ÈÁÚ±ß)£¬½Ð×ö¸ÃÈñ½ÇµÄÕý¸î£¬ÓÃsec(½Ç)±íʾ¡£ (secµÄÍêÕûÐÎʽΪs
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý½Çº¯ÊýÓÕµ¼¹«Ê½£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ ÓÕµ¼¹«Ê½µÄ±¾ÖÊ ËùνÈý½Çº¯ÊýÓÕµ¼¹«Ê½£¬¾ÍÊǽ«½Çn ( /2) µÄÈý½Çº¯Êýת»¯Îª½Ç µÄÈý½Çº¯Êý¡£ ³£ÓõÄÓÕµ¼¹«Ê½ ¹«Ê½Ò»£ºÉè
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®ºÍ²î»¯»ý¹«Ê½ÍƵ¼£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ ºÍ²î»¯»ý¹«Ê½ÍƵ¼ Ê×ÏÈ£¬´ó¼ÒÖªµÀsin(a+b)=sina*cosb+cosa*sinb£¬sin(a-b)=sina*cosb-cosa*sinb ´ó¼Ò°ÑÁ½Ê½Ïà¼Ó¾ÍµÃµ½
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®ÓàÏÒµÄÐÔÖÊ£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ ¶ÔÓÚÈÎÒâÈý½ÇÐΣ¬ÈκÎÒ»±ßµÄƽ·½µÈÓÚÆäËûÁ½±ßƽ·½µÄºÍ¼õÈ¥ÕâÁ½±ßÓëËüÃǼнǵÄÓàÏÒµÄÁ½±¶»ý£¬ÈôÈý±ßΪa£¬b£¬cÈý½ÇΪA£¬B£¬C£¬
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý±¶½Ç¹«Ê½ÍƵ¼£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ tan3 =sin3 /cos3 =(sin2 cos +cos2 sin )/(cos2 cos -sin2 sin ) =(2sin cos^2( )+cos^2( )sin -sin^3( ))/(cos^3( )-
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý½Çº¯ÊýºÍ²î»¯»ý¹«Ê½£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ sin +sin =2sin[( + )/2]cos[( - )/2] sin -sin =2cos[( + )/2]sin[( - )/2] cos +cos =2cos[( + )/2]cos[( - )/2
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Èý½Çº¯Êý¹«Ê½´óÈ«£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ Èý½Çº¯ÊýºÍ²î»¯»ý¹«Ê½ sin +sin =2sin[( + )/2]cos[( - )/2] sin -sin =2cos[( + )/2]sin[( - )/2] cos +cos =2cos[(
2020-12-07
Öп¼ÍøÕûÀíÁ˹ØÓÚ2021ÄêÖп¼Êýѧ³£Ê¶µãÖ®Ö±½ÇÈý½ÇÐεÄÐÔÖÊ£¬Ï£Òí¶ÔͬѧÃÇÓÐËù°ïÖú£¬½ö¹©²Î¿¼¡£ ¢ÙÖ±½ÇÈý½ÇÐεÄÁ½¸öÈñ½Ç»¥ÎªÓà½Ç£» ¢ÚÖ±½ÇÈý½ÇÐÎб±ßÉϵÄÖÐÏßµÈÓÚб±ßµÄÒ»°ë£» ¢ÛÖ±½ÇÈý½ÇÐεÄÁ½Ö±½Ç±ßµÄƽ·½ºÍµÈÓÚб
2020-12-07