Ejercicios Limite
July 25, 2022 | Author: Anonymous | Category: N/A
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Xohhiøk 2.6 Ok jgs prgbjo`fs 86 ‘ 84, trfho ukf nræahf do jf ukhiøk a hgk jfs prgpiodfdos dfdfs. 86. a ( ( −6 )08 , a ( ( 5 )0−6 , a ( ( 6 )05 , ji`
a (( x x ) kg oxisto
x → 5
a ( ( xx )0
{
−8
8
2
2
x + , x≥ 5
−6 , x 05
Xohhiøk 2.2
x )04 y ji` n ( xx )0 2 .Okhuoktro oj jà`ito dfdg, g hgkhjuyf Ok jgs prgbjo`fs ?8 ‘ >5, supgknf quo ji` a (( x x→ f
x →f
quo kg oxisto. 2
?=. ji` x →f
ji`
\ a ( ( x ) P −4 \ n ( x ) P a ( ( x )−2 n ( x ) 2
\ a ( ( x ) P − 4 \ n ( x x ) P
x → f
ji` x →f
2
a ( ( x )−2 n ( x )
2
→
2
2
ji`
\ a (( x ) P −ji` 4 \ n ( x ) P
ji`
x →f
x→ f
x → f
ji`
a (( x )− ji` 2 n ( x )
x →f
x →f
→
a ( ( x )∞a ( x )−4 ji` ji` n ( x )∞ n ( x ) x → f
ji` x →f
a ( x )−2ji` n ( x ) x→ f
ji`
a ( ( x x )∞ji` a ( x )− 4 ji` n ( x x )∞ji` n ( x )
x → f
x → f
ji`
x →f
x→ f
a ( x )−2ji` n ( x )
x→ f
0
( 4∞4 )− 4∞2∞2 61 −61 5 0 0 4 − 2∞2 4 −4 5
x → f
Oj jà`ito dfdg kg oxisto si kg mfho`gs fjnók pg do fhtgrizfhiøk. 2
ji`
\ a ( ( x ) P − 4 \ n ( x x ) P
2
→ ji`
a ( ( x ) −2 n ( x )
x→ f
x→ f
( a (( x )−2 n ( x )) ( a ( ( x ) +2 n ( x ) )
a (( x )−2 n ( x )
→ ji` a x x →f
( )+
2n
x
( )
· 4 + 2∞204 + 4 0 =
Xohhiøk 2.8 Ok jgs prgbjo`fs 2? ‘ 2=, okhuoktro jgs vfjgros do ` y k do tfj `fkorf quo jf ukhiøk sof hgkkuf
{
2
x − 4 21. a ( ( x x )0 x −2 , x ≥ 2 ` , x 02 −4ji` → ji` · ·· x −2 x→ x + 0
+ · x
x→ 2
2
2+ ·
·
2 4
·
ji` 2
−4 → ji` ·· · x −2 x→ x + 0
− · x
x→ 2
2 −·
2
4
Hg`g pgr f`bfs pfrtos os inufj, toko`gs quo oj jà`ito ok x 0 2, soràf 4. Ugr jg tfktg, pfrf quo sof hgkkug, ` dobo sor 4
2>. a ( ( x x )0
{
`x, x : 8 k , x08 −2 x + 9 , x ; 8
ji` x→ 8+· − 2 x + 90−1+ 908 ·
ji` −·
·
·
x→ 8 `x08 ` ·
8 ` 0 8 → ` 06
Hg`g − 2 x + 908 hufkdg x okdo f 8 pgr jf dorohmf y, ` os 8` hufkdg x okdo f 8 pgr jf izquiordf, mfho`gs ukf ohufhiøk pfrf quo f`bgs jà`itos sofk inufjos y, do ostf gr`f hgkkuf. Fj rosgjvorjg, gbtoko`gs quo ` 0 6. Fmgrf, hg`g jgs jà`itos do jf izquiordf y dorohmf sgk 8, oktgkhos k 0 8 pfrf quo sof hgkkug Xohhiøk 2.? Ok jgs prgbjo`fs 6 ‘ 24, oxproso oj jà`ito dfdg hg`g uk kó`org, kó`org, hg`g
−∛,ghg`g∛.
>.
·
ji`
x →5
+· 2
+sokx x
→
+·
x → 5
ji` 2+ sokx∞ ji` 6 x→ 5 +· 0 ··
··
··
x
=.
·
ji` +·
x →υ hshx 0hsh ( υ + 5.55555556)0−∛ ·
ji` 8 6>. ji` ji`
∓
x →∛
8 x + 2 → 1 x −=
∓
ji`
x→ ∛
8 x + 2 → 1 x −=
∓
2
+ x 0 = ji` 1 −
x →∛
x→ ∛
x
∓ ∓
8 0 6 2 1
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