锟斤拷锟斤拷锟竭匡拷锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)锟窖斤拷(j锟斤拷ng)锟絖(k锟斤拷i)始锟斤拷小锟斤拷锟节此烇拷锟斤拷锟斤拷锟斤拷锟剿極锟斤拷锟斤拷锟絚(di锟斤拷n)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷覅锟斤拷锟�锟斤拷希锟斤拷锟斤拷(du锟斤拷)锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紸(y锟斤拷)祝锟斤拷锟饺★拷锟斤拷锟斤拷锟侥成匡拷(j锟斤拷)!

锟斤拷锟斤拷锟斤拷試锟斤拷(n锟斤拷i)锟捷ｏ拷锟教學(xu锟斤拷)锟絯锟絳锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟絯锟絳锟斤拷锟斤拷(y锟斤拷ng)锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟叫的極锟斤拷.

锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟侥極锟斤拷.锟斤拷锟睫碉拷锟侥則锟絓(y锟斤拷n)锟斤拷.锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟紹锟絤(x锟斤拷)锟斤拷.

锟斤拷锟斤拷锟斤拷試要锟斤拷

锟斤拷锟斤拷(1)锟斤拷锟解數(sh锟斤拷)锟絎(xu锟斤拷)锟絯锟絳锟斤拷锟斤拷原锟斤拷锟斤拷锟斤拷锟矫旓拷(sh锟斤拷)锟絎(xu锟斤拷)锟絯锟絳锟斤拷锟紺锟斤拷一些锟斤拷(ji锟斤拷n)锟轿的旓拷(sh锟斤拷)锟絎(xu锟斤拷)锟斤拷锟絵.

锟斤拷锟斤拷(2)锟剿解數(sh锟斤拷)锟叫極锟睫和猴拷锟斤拷(sh锟斤拷)锟絆锟睫的革拷锟斤拷.

锟斤拷锟斤拷(3)锟斤拷锟秸極锟睫碉拷锟侥則锟絓(y锟斤拷n)锟姐法锟絫;锟斤拷(hu锟斤拷)锟斤拷某些锟斤拷(sh锟斤拷)锟斤拷锟絚锟斤拷锟斤拷(sh锟斤拷)锟侥極锟斤拷.

锟斤拷锟斤拷(4)锟剿解函锟斤拷(sh锟斤拷)锟紹锟絤(x锟斤拷)锟斤拷锟斤拷锟絰锟斤拷锟剿斤拷锟絔锟絕(q锟斤拷)锟絞锟斤拷锟紹锟絤(x锟斤拷)锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟街碉拷锟斤拷锟叫≈碉拷锟斤拷锟斤拷|(zh锟斤拷).

锟斤拷锟斤拷§13. 锟絆 锟斤拷 知锟絉(sh锟斤拷)要锟絚(di锟斤拷n)

锟斤拷锟斤拷1. 锟脚碉拷一锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟絯锟絳锟斤拷锟斤拷锟斤拷锟紺锟斤拷锟斤拷(d锟斤拷ng) 取锟斤拷一锟斤拷(g锟斤拷) 锟絩(sh锟斤拷)锟結(ji锟斤拷)論锟斤拷锟絖;锟节硷拷锟絆(sh锟斤拷)锟斤拷(d锟斤拷ng) ( )锟絩(sh锟斤拷)锟斤拷锟結(ji锟斤拷)論锟斤拷锟絖锟斤拷锟紺锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷锟結(ji锟斤拷)論锟斤拷锟斤拷.

锟斤拷锟�锟斤拷频诙锟斤拷锟�(sh锟斤拷)锟絎(xu锟斤拷)锟絯锟絳锟斤拷锟斤拷锟絆(sh锟斤拷) 锟斤拷一锟斤拷(g锟斤拷)锟絚锟斤拷锟斤拷锟斤拷(sh锟斤拷) 锟斤拷锟絇(gu锟斤拷n)锟斤拷锟斤拷锟絵锟斤拷锟斤拷锟�

锟斤拷锟�锟斤拷佼锟�(d锟斤拷ng) ( )锟絩(sh锟斤拷)锟斤拷 锟斤拷锟斤拷;

锟斤拷锟�锟斤拷诩锟斤拷O(sh锟斤拷)锟斤拷(d锟斤拷ng) ( )锟絩(sh锟斤拷)锟斤拷 锟斤拷锟斤拷锟斤拷锟狡碉拷 锟絩(sh锟斤拷)锟斤拷 也锟斤拷锟斤拷.

锟斤拷锟斤拷锟斤拷么锟斤拷锟斤拷锟斤拷(j锟斤拷)锟劫②岋拷(du锟斤拷)一锟斤拷锟斤拷然锟斤拷(sh锟斤拷) 锟絩(sh锟斤拷)锟斤拷 锟斤拷锟斤拷锟斤拷.

锟斤拷锟斤拷2. 锟脚旓拷(sh锟斤拷)锟叫極锟睫的憋拷示锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷

锟斤拷锟�锟斤拷诋锟�(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷 .

锟斤拷锟�锟斤拷茙讉锟�(g锟斤拷)锟斤拷锟矫極锟睫ｏ拷

锟斤拷锟�锟斤拷锟� ( 锟介常锟斤拷(sh锟斤拷))

锟斤拷锟�锟斤拷锟�

锟斤拷锟�锟斤拷蹖锟�(du锟斤拷)锟斤拷锟斤拷锟解實(sh锟斤拷)锟斤拷锟斤拷(sh锟斤拷)锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷锟斤拷a = 1锟斤拷锟絫 ;锟斤拷 锟斤拷锟絫 锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷 锟斤拷锟斤拷锟斤拷

锟斤拷锟�锟斤拷菙锟�(sh锟斤拷)锟叫極锟睫碉拷锟侥則锟絓(y锟斤拷n)锟姐法锟絫锟斤拷

锟斤拷锟斤拷锟斤拷锟� 锟斤拷锟斤拷么

锟斤拷锟�锟斤拷锟�

锟斤拷锟�锟斤拷锟�

锟斤拷锟�锟斤拷锟�

锟斤拷锟斤拷锟截別锟斤拷锟斤拷锟斤拷锟紺锟角筹拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷么

锟斤拷锟斤拷.

锟斤拷锟�锟斤拷葦锟�(sh锟斤拷)锟叫極锟睫的戯拷(y锟斤拷ng)锟矫ｏ拷

锟斤拷锟斤拷锟斤拷o(w锟斤拷)锟紽锟斤拷(sh锟斤拷)锟叫的革拷锟�(xi锟斤拷ng)锟斤拷锟斤拷锟截別锟斤拷锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷锟給(w锟斤拷)锟紽锟饺比旓拷(sh锟斤拷)锟叫的革拷锟�(xi锟斤拷ng)锟酵烇拷 .

锟斤拷锟斤拷(锟斤拷循锟絟(hu锟斤拷n)小锟斤拷(sh锟斤拷)锟斤拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷同锟斤拷式)

锟斤拷锟斤拷注锟斤拷锟斤拷锟斤拷锟斤拷每一锟斤拷(g锟斤拷)锟給(w锟斤拷)锟紽锟斤拷(sh锟斤拷)锟叫讹拷锟叫極锟斤拷.

锟斤拷锟斤拷

       3. 锟斤拷锟斤拷(sh锟斤拷)锟絆锟斤拷;

锟斤拷锟�锟斤拷女锟�(d锟斤拷ng)锟斤拷變锟斤拷 锟給(w锟斤拷)锟斤拷趨锟斤拷锟节筹拷锟斤拷(sh锟斤拷) (锟斤拷锟斤拷锟斤拷锟斤拷 )锟絩(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟�(sh锟斤拷) 锟給(w锟斤拷)锟斤拷趨锟組(j锟斤拷n)锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟斤拷(sh锟斤拷) 锟斤拷锟斤拷锟斤拷锟絝(shu锟斤拷)锟斤拷(d锟斤拷ng) 趨锟斤拷锟斤拷 锟絩(sh锟斤拷)锟斤拷锟斤拷锟斤拷(sh锟斤拷) 锟侥極锟睫烇拷 .記锟斤拷 锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷 .

锟斤拷锟斤拷注锟斤拷锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷 锟角凤拷锟斤拷跇O锟斤拷锟絚 锟斤拷 處锟角凤拷锟絰锟給(w锟斤拷)锟絇(gu锟斤拷n)锟斤拷锟斤拷?y锟斤拷n)?锟斤拷锟斤拷要锟斤拷 .(锟斤拷(d锟斤拷ng)然锟斤拷 锟斤拷 锟角凤拷锟叫讹拷锟絰也锟絚 锟斤拷 處锟角凤拷锟斤拷跇O锟睫無(w锟斤拷)锟絇(gu锟斤拷n). 锟斤拷锟斤拷(sh锟斤拷) 锟斤拷 锟叫讹拷锟絰锟斤拷 锟斤拷锟节的既诧拷锟斤拷锟斤拷植锟斤拷锟揭�锟絣锟斤拷.)

锟斤拷锟斤拷锟斤拷 锟斤拷 處锟給(w锟斤拷)锟斤拷锟絰锟斤拷锟斤拷 锟斤拷锟斤拷锟斤拷锟斤拷?y锟斤拷n)锟斤拷?處锟斤拷锟揭極锟睫撅拷锟斤拷锟斤拷锟斤拷.

锟斤拷锟�锟斤拷坪锟斤拷锟�(sh锟斤拷)锟絆锟睫碉拷锟侥則锟絓(y锟斤拷n)锟姐法锟絫锟斤拷

锟斤拷锟斤拷锟斤拷锟� 锟斤拷锟斤拷么

锟斤拷锟�锟斤拷锟�

锟斤拷锟斤拷锟斤拷

锟斤拷锟�锟斤拷锟�

锟斤拷锟斤拷锟截別锟截ｏ拷锟斤拷锟紺锟角筹拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷么

锟斤拷锟斤拷.

锟斤拷锟斤拷( )

锟斤拷锟斤拷注锟斤拷锟劫革拷锟斤拷(g锟斤拷)锟斤拷锟斤拷(sh锟斤拷)锟侥極锟睫讹拷锟斤拷(y锟斤拷ng)锟斤拷锟斤拷.

锟斤拷锟�锟斤拷锟斤拷膭t锟絓(y锟斤拷n)锟姐法锟絫锟斤拷锟狡廣锟斤拷锟斤拷锟斤拷锟斤拷锟睫傦拷(g锟斤拷)锟絆锟睫碉拷锟斤拷r锟斤拷锟斤拷锟斤拷锟斤拷锟狡廣锟斤拷锟給(w锟斤拷)锟睫傦拷(g锟斤拷)锟斤拷r.

锟斤拷锟�锟斤拷菐讉锟�(g锟斤拷)锟斤拷锟矫極锟睫ｏ拷

锟斤拷锟�锟斤拷锟�

锟斤拷锟�锟斤拷锟� (0< <1); ( >1)

锟斤拷锟斤拷锟斤拷

锟斤拷锟�锟斤拷锟� 锟斤拷 ( )

锟斤拷锟斤拷4. 锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟紹锟絤(x锟斤拷)锟皆ｏ拷

锟斤拷锟�锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)f(x)锟斤拷g(x)锟斤拷某一锟絚(di锟斤拷n) 锟紹锟絤(x锟斤拷)锟斤拷锟斤拷么锟斤拷锟斤拷(sh锟斤拷) 锟斤拷锟絚(di锟斤拷n) 處锟斤拷锟紹锟絤(x锟斤拷).

锟斤拷锟斤拷锟狡猴拷锟斤拷(sh锟斤拷)f(x)锟斤拷锟絚(di锟斤拷n) 處锟紹锟絤(x锟斤拷)锟斤拷須滿锟斤拷锟斤拷锟斤拷(g锟斤拷)锟絣锟斤拷锟斤拷

锟斤拷锟�锟斤拷俸锟斤拷锟�(sh锟斤拷)f(x)锟斤拷锟絚(di锟斤拷n) 處锟叫讹拷锟絰;锟斤拷 锟斤拷锟斤拷;锟桔猴拷锟斤拷(sh锟斤拷)f(x)锟斤拷锟絚(di锟斤拷n) 處锟侥極锟斤拷值锟斤拷锟斤拷該锟絚(di锟斤拷n)锟侥猴拷锟斤拷(sh锟斤拷)值锟斤拷锟斤拷 .

锟斤拷锟�锟斤拷呛锟斤拷锟�(sh锟斤拷)f(x)锟斤拷锟絚(di锟斤拷n) 處锟斤拷锟紹锟絤(x锟斤拷)(锟絞锟斤拷)锟斤拷锟叫讹拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�(sh锟斤拷)f(x)锟斤拷锟絚(di锟斤拷n) 處锟斤拷锟斤拷锟斤拷锟斤拷锟絅锟斤拷r之一锟絩(sh锟斤拷)锟斤拷锟絫锟絈 锟介函锟斤拷(sh锟斤拷)f(x)锟侥诧拷锟紹锟絤(x锟斤拷)锟絚(di锟斤拷n).

锟斤拷锟�锟斤拷锟絝(x)锟斤拷锟絚(di锟斤拷n) 處锟絔(m锟斤拷i)锟叫讹拷锟絰锟斤拷锟斤拷 锟斤拷锟斤拷锟斤拷;锟斤拷 锟斤拷锟斤拷锟斤拷;锟斤拷 锟斤拷锟斤拷锟斤拷锟斤拷 .

锟斤拷锟斤拷5. 锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷值锟斤拷锟斤拷锟斤拷锟紸锟狡讹拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟絆(sh锟斤拷)锟斤拷锟斤拷(sh锟斤拷) 锟斤拷锟絔锟絕(q锟斤拷)锟絞 锟斤拷锟紹锟絤(x锟斤拷)锟斤拷锟斤拷 .锟斤拷么锟斤拷锟絖(k锟斤拷i)锟絕(q锟斤拷)锟絞 锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟叫猴拷锟斤拷(sh锟斤拷) 锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟絚(di锟斤拷n) ( < < )使 .

锟斤拷锟�锟斤拷平锟街碉拷锟斤拷锟斤拷锟斤拷O(sh锟斤拷)锟斤拷锟斤拷(sh锟斤拷) 锟斤拷锟絔锟絕(q锟斤拷)锟絞 锟斤拷锟紹锟絤(x锟斤拷)锟斤拷锟斤拷锟斤拷锟紷锟絕(q锟斤拷)锟絞锟侥讹拷锟絚(di锟斤拷n)取锟斤拷同锟斤拷锟斤拷(sh锟斤拷)值锟斤拷 锟斤拷锟斤拷么锟斤拷(du锟斤拷)锟斤拷 之锟絞锟斤拷锟斤拷锟揭伙拷锟�(g锟斤拷)锟斤拷(sh锟斤拷) 锟斤拷锟斤拷锟絖(k锟斤拷i)锟絕(q锟斤拷)锟絞 锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟斤拷一锟絚(di锟斤拷n) 锟斤拷使锟斤拷 ( < < ).

锟斤拷锟�锟斤拷菉A锟狡讹拷锟斤拷锟斤拷锟絆(sh锟斤拷)锟斤拷(d锟斤拷ng) 锟絩(sh锟斤拷)锟斤拷锟斤拷 ≤ ≤ 锟斤拷锟斤拷 锟斤拷锟絫锟斤拷锟斤拷

锟斤拷锟斤拷注锟斤拷 锟斤拷锟斤拷示锟斤拷 锟斤拷臉O锟睫ｏ拷锟絫 锟酵無(w锟斤拷)锟斤拷趨锟斤拷锟斤拷锟斤拷.( 锟斤拷锟斤拷小锟斤拷锟斤拷(sh锟斤拷))

锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟絉锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟戒、志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)