(1/2)ҳ
ɶ
ݾôȥ˵ǸŸոóңμսĶըëˡ
ʲôСʮֻɼޡ
ǿǼʮֻ
ݣ
ɱ˵ܴùǣ
Ȼô˫ֲصŰݣȻDZݸոյ赭д̬Ⱥòᡣ
Ҹ˵
˰ϰ壬û˭ܵͬʱôɼޣ
ңɽͯԡǡ
ͳͳУ
ŹֵСһȻҲҲ϶Dzеģ
˵꣬ĶسŰƳȥһмС
ȻɣڣĿǰ֪ݵľʵҲֻǴǵİϰ˵һ㣬֪ݲͨˣͻƶΪﻹǴ壬ͻǵǵİϰʵǿ
ȻϰǿȻϰ嶼СôɼޣijСŮո˵ִͿ϶Ҫĵġ
()
ȴͣ
ֻǿ˿ԶٱܺͰΧųɽܹ߱ЩȵģúijЩǵɼޣȻͻȻŤͷŶԷ
Ҫ
Ķ㣬Ҫ˼һʰǵĻ˼ȥǡǸ֡һ٣
()
˵ţֱһơ
ϴΰݲǿ˸뱥ԭ뽫ǷвʽȫһģǸֶȴͻȻ˵ǮԣһȺԹȺΧۺͱֶʷ˺þãԴǹڻþ˵ġ
ԣҸȥݺݳһ飬ȻԼDzǮٺúöŪһǸּһ
˵ʲô
һȥԸһȺ
ɽ
ž
ݵĶԼٿΧмʮֻɼޣĶûȥƽҪԼֱҲһƺͰݵһ£ȻʾԼʽЧˡ
̫ˣ
()ٺ
͵ŸǮɣ
()
˰
-
==()
˵ţҲȶԷ˵ʲôȻһ̵سɽȥ
ϾǴһȥʰЩɼޣҪǵ˱ȳֵĻɾӮòˡ
ԣҪȥ·ǣȻһֻܲ
ιι
Сݣȷ
״ǸɽæȰţȻǰȥ
Ķ
˼Ұݺôǿˣ㲻ҪôС
ǸϴŻľߣԴյǹͯҲʼȰţȻҲȥݰæ
ȻûĶ˵ʲôǸ¿ϰȴͻȻֹˡ
ţѾܵɽİݣŻҡͷ̾
ȱš
ֻһȺI͵ͽɼѣûô£
ȿŰɣ
˵ˣȻһܵǴ壬Ǿ֤϶Dz֪ı£
ãοԺúÿ
˵ţô멣һƺᵶİϰ壬ôŸ첲վɽ۲Ϊؿţ뿴ϾҪӭȺɼijСŮһ̶ֳȡ
ڣ
ɽϵ˾ɲŸ˼ʱɽµ˫ʼӴˡֻܵһֻɼ˲߸ԾצѾͣİݵŻȥ
Ȼijȴ˷
(1/2)ҳ,һҳĶ
ǩĶ