ÌâÄ¿ÄÚÈÝ
ÈçͼËùʾ£¬Oxyz×ø±êϵµÄyÖáÊúÖ±ÏòÉÏ£¬×ø±êϵËùÔڵĿռä´æÔÚÔÈÇ¿µç³¡ºÍÔÈÇ¿´Å³¡£¬µç³¡·½ÏòÓëxÖáƽÐС£´ÓyÖáÉϵÄMµã(0,H,0)ÎÞ³õËÙ¶ÈÊÍ·ÅÒ»¸öÖÊÁ¿Îªm£¬µçºÉÁ¿ÎªqµÄ´ø¸ºµçµÄСÇò£¬ËüÂäÔÚxzƽÃæÉϵÄN (l,0,b)µã(l>0,b>O)£®Èô³·È¥´Å³¡ÔòСÇòÂäÔÚxzƽÃæÉϵÄP(l£¬0£¬0)µã£®ÒÑÖªÖØÁ¦¼ÓËٶȴóСΪg.
£¨1£©ÒÑÖªÔÈÇ¿´Å³¡·½ÏòÓëij¸ö×ø±êÖáƽÐУ¬ÇëÈ·¶¨Æä¿ÉÄܵľßÌå·½Ïò£»
£¨2£©Çó³öµç³¡Ç¿¶ÈµÄ´óС£»
£¨3£©Çó³öСÇòÂäÖÁNµãʱµÄËÙÂÊ£®
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241150563206166.gif)
£¨1£©ÒÑÖªÔÈÇ¿´Å³¡·½ÏòÓëij¸ö×ø±êÖáƽÐУ¬ÇëÈ·¶¨Æä¿ÉÄܵľßÌå·½Ïò£»
£¨2£©Çó³öµç³¡Ç¿¶ÈµÄ´óС£»
£¨3£©Çó³öСÇòÂäÖÁNµãʱµÄËÙÂÊ£®
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241150563206166.gif)
£¨1£©ÔÈÇ¿´Å³¡ÑØ£x»ò£y·½Ïò£¨2£©
£¨3£©![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056366737.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056351527.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056366737.gif)
£¨1£©ÔÈÇ¿´Å³¡ÑØ£x»ò£y·½Ïò£®
£¨2£©³·È¥´Å³¡£¬Ð¡ÇòÑØy·½Ïò£º
СÇòÑØx·½Ïò£º
ÓÉÅ£¶ÙµÚ¶þ¶¨ÂÉ£º
½âµÃ£º
£¨3£©¶ÔÈ«¹ý³ÌÓö¯Äܶ¨Àí£º
¡ß
½âµÃ£º
£¨2£©³·È¥´Å³¡£¬Ð¡ÇòÑØy·½Ïò£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056382476.gif)
СÇòÑØx·½Ïò£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056398437.gif)
ÓÉÅ£¶ÙµÚ¶þ¶¨ÂÉ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056444424.gif)
½âµÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056351527.gif)
£¨3£©¶ÔÈ«¹ý³ÌÓö¯Äܶ¨Àí£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056476698.gif)
¡ß
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056351527.gif)
½âµÃ£º
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115056366737.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿