»Øµ½Ê×Ò³ | ¸öÈËÖ÷Ò³ | BT·¢²¼Ò³ | FTPËÑË÷ | FTPÁ÷Á¿ÖÐÐÄ | ÐéÄâ×ã²Ê | ÉçÇøÒøÐÐ | Ñ«ÕÂϵͳ | ÔÞÖú·þÎñÆ÷

·¢Ð»°Ìâ
´òÓ¡

¡¾×ªÌù¡¿ÆøËÀÊýѧÀÏʦµÄ´ð°¸£¡

¡¾×ªÌù¡¿ÆøËÀÊýѧÀÏʦµÄ´ð°¸£¡

  ÌâÄ¿£ºSin2x/2ncosx

                   ´ð°¸£º=2SinxCosx/2ncosx

                               (Լȥ2cosx)

                             =Sinx/n

                             (Լȥn)
                            
                               =six
                           £¨ÍÛ£¡ºÃÇ¿µÄ×ÛºÏÌ⣬»¹¿¼Ó¢Ó£©
                               =Áù

TOP

¿´¹ýºÜ¶à±éÁË

TOP

ÄǸönÄÜÔ¼µôô?
¾ýÁÙÌìϲ»ÊÇëÞµÄ´í¡£¡£ÊÇÉÏÌìµÄÑ¡Ôñ¡£Èç¹ûÓÐʲôÒâ¼û¡£¡£¾Í¶ÔÌì·¢ÄѰɡ£ÎÊËûΪʲôҪ¸øÎÒͳÖÎÌìϵÄÄÜÁ¦

TOP

ºÇºÇ

TOP

ÕæÊÇ̫ǿÁË£¡pfpf

TOP

Ìáʾ: ×÷Õß±»½ûÖ¹»òɾ³ý ÄÚÈÝ×Ô¶¯ÆÁ±Î

TOP

̫ǿ´Ê¶áÀíÁË£¬²»ºÃÍæµÄ¡£

TOP

Ó¢ÓïÀÏʦ¸ÃºÜ¸ßÐ˵Ä

TOP

¸ãЦ

TOP

ºÜÀϵÄÌû×ÓÁË,²»¹ý»¹ÊǶ¥Ò»ÏÂ

TOP

¶¥Ò»Ï°Ñ,лл¥Ö÷

TOP

·¢Ð»°Ìâ