ÌâÄ¿ÄÚÈÝ
ÒÑÖªº¯Êý
£½
£«
ÓÐÈçÏÂÐÔÖÊ£ºÈç¹û³£Êý
£¾0£¬ÄÇô¸Ãº¯ÊýÔÚ
0£¬
ÉÏÊǼõº¯Êý£¬ÔÚ
£¬£«¡Þ
ÉÏÊÇÔöº¯Êý£®
£¨¢ñ£©Èç¹ûº¯Êý
£½
£«
£¨
£¾0£©µÄÖµÓòΪ
6£¬£«¡Þ
£¬Çó
掙术
£¨¢ò£©Ñо¿º¯Êý
£½
£«
£¨³£Êý
£¾0£©ÔÚ¶¨ÒåÓòÄڵĵ¥µ÷ÐÔ£¬²¢ËµÃ÷ÀíÓÉ£»
£¨¢ó£©¶Ôº¯Êý
£½
£«
ºÍ
£½
£«
£¨³£Êý
£¾0£©×÷³öÍƹ㣬ʹËüÃǶ¼ÊÇÄãËùÍƹãµÄº¯ÊýµÄÌØÀý£®Ñо¿ÍƹãºóµÄº¯ÊýµÄµ¥µ÷ÐÔ£¨Ö»Ðëд³ö½áÂÛ£¬²»±ØÖ¤Ã÷£©£¬²¢Çóº¯Êý
£¨
ÊÇÕýÕûÊý£©ÔÚÇø¼ä[
£¬2]ÉϵÄ×î´óÖµºÍ×îСֵ£¨¿ÉÀûÓÃÄãµÄÑо¿½áÂÛ£©£®










£¨¢ñ£©Èç¹ûº¯Êý







£¨¢ò£©Ñо¿º¯Êý




£¨¢ó£©¶Ôº¯Êý










£¨¢ñ£©¡àb=log29. £¨¢ò£©¸Ãº¯ÊýÔÚ(£¡Þ,£
]ÉÏÊǼõº¯Êý, ÔÚ[£
,0
ÉÏÊÇÔöº¯Êý £¨¢ó£©µ±
»ò
ʱ£¬
È¡µÃ×î´óÖµ
£»µ±
ʱ
È¡µÃ×îСֵ8.


ÉÏÊÇÔöº¯Êý £¨¢ó£©µ±






±¾Ì⿼²éº¯Êýµ¥µ÷ÐÔµÄÔËÓ㬽âÌâµÄ¹Ø¼üÔÚÓÚ½ô¿ÛÌâ¸ÉËù¸øº¯ÊýµÄµ¥µ÷ÐÔµÄÐÔÖÊ£¬²¢ÀûÓÃÆä½âÌ⣮
(1£©ÒòΪº¯Êýy=x+
(x>0)µÄ×îСֵÊÇ2
£¬Ôò2
="6,"
¡àb=log29
(2)ÀûÓõ¥µ÷ÐÔ¶¨Òå¿ÉÖªÉè0<x1<x2,y2£y1=
£¬ÄÇôµÃµ½µ¥µ÷ÐÔµÄÌÖÂÛ¡£
(3) ¿ÉÒ԰Ѻ¯ÊýÍƹãΪy=
(³£Êýa>0),ÆäÖÐnÊÇÕýÕûÊý.
µ±nÊÇÆæÊýʱ,º¯Êýy=
ÔÚ(0,
]ÉÏÊǼõº¯Êý,ÔÚ[
,+¡Þ) ÉÏÊÇÔöº¯Êý,
ÔÚ(£¡Þ,£
]ÉÏÊÇÔöº¯Êý, ÔÚ[£
,0)ÉÏÊǼõº¯Êý£»
µ±nÊÇżÊýʱ,º¯Êýy=
ÔÚ(0,
]ÉÏÊǼõº¯Êý,ÔÚ[
,+¡Þ) ÉÏÊÇÔöº¯Êý,
ÔÚ(£¡Þ,£
]ÉÏÊǼõº¯Êý, ÔÚ[£
,0)ÉÏÊÇÔöº¯Êý
(1£©ÒòΪº¯Êýy=x+



¡àb=log29
(2)ÀûÓõ¥µ÷ÐÔ¶¨Òå¿ÉÖªÉè0<x1<x2,y2£y1=

(3) ¿ÉÒ԰Ѻ¯ÊýÍƹãΪy=

µ±nÊÇÆæÊýʱ,º¯Êýy=



ÔÚ(£¡Þ,£


µ±nÊÇżÊýʱ,º¯Êýy=



ÔÚ(£¡Þ,£



Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿