ÈçͼËùʾ£¬P¡¢QÊÇÁ½ÖÖ͸Ã÷²ÄÁÏÖƳɵÄÁ½¿éÏàͬµÄÖ±½ÇÌÝÐÎÀâ¾µ£¬µþºÏÔÚÒ»Æð×é³ÉÒ»¸ö³¤·½Ì壬һµ¥É«¹â´ÓPµÄÉϱíÃæÉäÈ룬ÕÛÉä¹âÏßÕýºÃ´¹Ö±Í¨¹ýÁ½Àâ¾µµÄ½çÃ棬ÒÑÖª²ÄÁϵÄÕÛÉäÂÊnP£¼nQ£¬Éäµ½PÉϱíÃæµÄ¹âÏßÓëPµÄÉϱíÃæµÄ¼Ð½ÇΪ¦È£¬ÏÂÁÐÅжÏÕýÈ·µÄÊÇ£¨¡¡¡¡£©
·ÖÎö£º¸ù¾Ý¼¸ºÎ¹ØϵÇó³ö¹âÏßÔÚQµÄϱíÃæµÄÈëÉä½Ç£¬½áºÏÈ«·¢ÉäµÄÌõ¼þÅжÏÄÜ·ñ·¢ÉúÈ«·´É䣬Èô²»ÄÜ·¢ÉúÈ«·´É䣬½áºÏÕÛÉ䶨ÂÉÇó³ö³öÉä¹âÏßÓëϱíÃæ¼Ð½ÇµÄ´óС£®
½â´ð£º½â£ºA¡¢B¹âÏßÕýºÃ´¹Ö±Í¨¹ýÁ½Àâ¾µµÄ½çÃ棬ÑØÖ±ÏßÉäµ½QµÄϱíÃ棬ÓÉÓÚÈëÉä½ÇÓëÁÙ½ç½Ç¹Øϵ²»Çå³þ£¬¹âÏßÔÚQµÄϱíÃæ¿ÉÄÜ·¢ÉúÈ«·´É䣬²»´Ó
QµÄϱíÃæÉä³ö£¬Ò²¿ÉÄܲ»·¢ÉúÈ«·´É䣬´ÓQµÄϱíÃæÉä³ö£®¹ÊAÕýÈ·¡¢B´íÎó£»
C¡¢D¡¢Èç¹û¹âÏß´ÓQµÄϱíÃæÉä³ö£¬¹â·Èçͼ£®
¸ù¾ÝÕÛÉ䶨ÂÉÓУº
nP=
sini1
sinr1
£¬nQ=
sinr2
sini2

Óɼ¸ºÎ֪ʶ֪£¬r1=i2£¬
ÓÉÌ⣬nP£¼nQ£¬ÔòµÃr2£¾i1
¸ù¾Ý¼¸ºÎ֪ʶµÃ£º¦Á£¼¦È£®¹ÊC´íÎó£¬DÕýÈ·£®
¹ÊÑ¡£ºAD£®
µãÆÀ£º±¾Ìâ¹Ø¼üÒªÕÆÎÕÈ«·´ÉäµÄÌõ¼þºÍÕÛÉ䶨ÂÉ£¬½áºÏ¼¸ºÎ֪ʶ¾Í¿ÉÒÔ½øÐзÖÎö£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

£¨2008?Ñô½­Ò»Ä££©ÈçͼËùʾ£¬P¡¢QÊÇÁ½¸ö´øµçÁ¿ÏàµÈµÄ¸ºµãµçºÉ£¬ËüÃÇÁ¬ÏßµÄÖеãÊÇO£®ÏÖ½«Ò»¸ºµçºÉÏȺó·ÅÔÚÖд¹ÏßÉϵÄAµãÓëBµã£¬OA£¼OB£¬ÓÃEA¡¢EB£¬¦ÅA¡¢¦ÅB·Ö±ð±íʾA£¬BÁ½µãµÄ³¡Ç¿ºÍ¸ºµçºÉÔÚÕâÁ½µãʱµÄµçÊÆÄÜ£¬ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬P¡¢QÊÇÁ½¸öµçÁ¿ÏàµÈµÄ¸ºµÄµãµçºÉ£¬ËüÃÇÁ¬ÏßµÄÖеãÊÇO£¬A¡¢BÊÇÖд¹ÏßÉϵÄÁ½µã£¬
.
OA
£¼
.
OB
£¬ÓÃEA¡¢EB¡¢UA¡¢UB·Ö±ð±íʾA¡¢BÁ½µãµÄ³¡Ç¿ºÍµçÊÆ£¬Ôò£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÈçͼËùʾ£¬P¡¢QÊÇÁ½¸öµçÁ¿ÏàµÈµÄÒìÖÖµãµçºÉ£¬P´øÕýµç£¬Q´ø¸ºµç£¬ËüÃÇÁ¬ÏßµÄÖеãÊÇO£¬A¡¢BÊÇÖд¹ÏßÉϵÄÁ½µã£¬ÓÃEA¡¢EB¡¢¦ÕA¡¢¦ÕB·Ö±ð±íʾA¡¢BÁ½µãµÄ³¡Ç¿ÓëµçÊÆ£¬Ôò£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬P¡¢QÊÇÁ½¸öµçÁ¿ÏàµÈµÄÒìÖÖµãµçºÉ£¬ÆäÖÐP´øÕýµç£¬Q´ø¸ºµç£¬OÊÇP¡¢QÁ¬ÏßµÄÖе㣬MNÊÇÏ߶ÎPQµÄÖд¹Ïߣ¬PQÓëMNËùÔÚƽÃæÓëÖ½ÃæƽÐУ¬ÓÐÒ»´Å³¡·½Ïò´¹Ö±ÓÚÖ½Ã棬һµç×ÓÒÔ³õËÙ¶Èv0½öÔڵ糡Á¦ÓëÂåÂØ×ÈÁ¦µÄ×÷ÓÃÏÂÑØÖ±ÏßMNÔ˶¯£¬Ôò£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

¾«Ó¢¼Ò½ÌÍøÈçͼËùʾ£¬P¡¢QÊÇÁ½ÖÖ͸Ã÷²ÄÁÏÖƳɵÄÁ½¿éÖ±½ÇÌÝÐεÄÀâ¾µ£¬µþºÏÔÚÒ»Æð×é³ÉÒ»¸ö³¤·½Ì壮ijµ¥É«¹âÑØÓëPµÄÉϱíÃæ³É¦È½ÇµÄ·½ÏòбÉäÏòP£¬ÆäÕÛÉä¹âÏßÕýºÃ´¹Ö±Í¨¹ýÁ½Àâ¾µµÄ½çÃ森ÒÑÖª²ÄÁϵÄÕÛÉäÂÊnP£¼nQ£¬ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸