ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬ÖÊÁ¿ÎªmµÄÎïÌå±»Á½¸ùϸÉþOA¡¢OB¹ÒÔÚС³µÉÏ£¬Á½¸ùϸÉþÓë³µ¶¥Ë®Æ½Ãæ¼Ð½Ç·Ö±ðΪ53¡ãºÍ37¡ã¡£ÒÑÖªsin37¡ã=0.6£¬cos37¡ã=0.8£¬ÖØÁ¦¼ÓËٶȴóСΪg£¬Çó£º

(1)ÈôС³µ¾²Ö¹²»¶¯£¬ÉþOAÀ­Á¦T1ºÍÉþOBÀ­Á¦T2·Ö±ðΪ¶à´ó£¿

(2)ÈôС³µÒÔ´óСΪgµÄ¼ÓËÙ¶ÈÏòÓÒÔȼÓËÙÔ˶¯Ê±£¬ÉþOAÀ­Á¦T1ºÍÉþOBÀ­Á¦T2·Ö±ðΪ¶à´ó£¿

(3)ÈôOAÉþÖÐÇ¡ºÃûÓÐÀ­Á¦£¬ÔòС³µÏòÓÒÔ˶¯µÄ¼ÓËÙ¶ÈΪ¶à´ó£¿

¡¾´ð°¸¡¿£¨1£©£»£¨2£©£¬£¨3£©

¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£º£¨1£©Ð¡³µ¾²Ö¹²»¶¯£¬ÎïÌåÊÜÁ¦Æ½ºâ

£¬

£¨2£©ÈôС³µÒÔ´óСΪgµÄ¼ÓËÙ¶ÈÏòÓÒÔȼÓËÙÔ˶¯Ê±£¬½¨Á¢Ë®Æ½ºÍÊúÖ±·½ÏòµÄÖ±½Ç×ø±êϵ£º

ÊúÖ±·½Ïò£º¢Ù

ˮƽ·½Ïò£º¢Ú

ÁªÁ¢¢Ù¢ÚµÃ£¬

£¨3£©ÈôOAÉþÖÐÇ¡ºÃûÓÐÀ­Á¦£¬ÎïÌåÊܵ½ÖØÁ¦ºÍÉþ×ÓµÄÀ­Á¦£¬£¬½âµÃ£º

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø