Sn>\:nr-r â-12l *o^j ò*\â\3.'f Ô'ê '!/ro\-^ >Çn '3^ìa, ì., :,"ìþåï (t\"{o #'n'c]., Ð <}ç. v.r *"âng vo^1)ãlà Ð+ +c> ' f" b-ta;ra ã,1} -î"ræ tn^i ;té.1

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1 Sn>\:nr-r â-12l *^J ò*\â\3.'f Ô'ê '!/r\-^ >Çn '3^ìa, ì., :,"ìþåï (t\"{o #'n'c]., Ð <}ç. v.r *"âng v^1)ãlà Ð+ +c> ' f" b-ta;ra ã,1} -î"ræ tn^i ;té.1_ ^rn3 *?- p-"g.,q nrð ' rrt:ap à..14. ' abwønv ìþrri',rç ç, "* çì? nt+ -\tudr4u, vvð- arui '* *T. H 4f l ffi ls è1å +p {.,p å*\þ) lîllt uþ Sn S2ntb (*\> åsu35 åh,r95 vl, :\ur{b1v1^ }1.4q,,} õrc-ä [Eï= h(þ/ -rg= lrur.l al.trrt wr\w 4 llti rt.'t. î h T, ' = "+ *r? ux ^ÎJ 'l T'x â.) f- tull à - u?t,,/r.- ' -T[-, Ç r\ xh T1ø. ôô, f f*," slrcrða1.,r zrr' nß..' à 4ç"1,1 e-,i=.).?{.,r;''ò J = (r),( J ' - " ã -'** :.*."ø1q.,'s r'lt1 Þ.+ ì l?rq flru î) Ììp t*rn4uunþ,àwa Å',,, )a,'(*;\t-",111^ ä,î'ifr;'yt?qll r'1,"* \,r flrfqq þ,rt (+,Ð Jr\' (4'*),?ñ [Ð,"U = *lui p*r, (r)?" svu:.-rn3 a^vn1 w-ì'" $ w i l 'u'ra1ic +{ È\t l:."l l'r '1wr' "'4* --f::*h**"--{::*jå " ti f: Ll ^ls,rl n 6v ' '> u àqà aru s'nai. ffii-)ffiîffiq lb,,/ ø,1tf ^ð'l+ çð v-çrì AV ru l"l)un ànrð nn fl èr4j- + ì3t"å, --r'üyftblkt àw " 5," ltt/s ànþfn wab -nt l.{4 êq,+. j- è.d.v.s,vi^ür,rp?qt äu,.rwrqap L,,rt flr, O.,, {Q*.y" r^rn1,..,n^b ^-)t1'julòutw,, )a, )ð\u nu?r",, wtrtlu'vnb wtrjtt?u.r \Æ,icìnl'rvi,,, ày) Sv ÀÀf"1ûi.44 ã Ð lbî1 6' pv'þ 7 6r,rnla: )q ifä1"*;3,?;t^:iry,lí,p,)f,t,þ*,,1y, Stat åp ),r'd f2lpìt-à è\4+ tcu rnls hq päi-t t-"' ")tr?p s -,rran!i /+ r:qrwg )n" " ç"y,u )qì ^n F.,?, i BrlÐ,15 ãyry :(r.1r,, sr'aba1v11 7,,'" l.; 'urdlilúri] ãnurv1 \tlpr' )./Þh å"s æ",\s r{'(a \+:4 f '"* äxrr-tr-,â '""'t1"'r3nb,ã4 } A 6 iiu'a êq+ f vr'-r\>9 \,,,'it1*.anr.d 1'r-rdu:'rlrê,, 21'W sl î * ã ",ô : rn?fl r n r,r èzlc 5v rpv rg ãr,\ r,t\ *t )v "-aër.1 f.,1 èq + 0 /ì\ v,/ ri-.,a1nerd t:r.,? à å1lt- fvt- vt daa4 al sð-l"t-! r',à+ þ \/L+3tr$ànren Ww47\ = sf,i(rar, '.t1 =V r1 u+..va {ais çt.*.,crë,.",_, ì U ';r-t,è\rú aw[,-,j QÅt- ''ræt,y Atl 3,'1À )J \,1r.^Þ bvt+r /q m hq +/Ð+s ç,_ì21. r;,ä: f:.r Ç, "3 + = ")f' 1.1 aq+ à ð1þ+t 9 tt ilz 6u'-rås - çv n,,6 ' j?j 115 :1"j : t l

2 (v-') -* þ L F f 1 n J J q"j O O - L + f v-'y," fa stv^,* åeå4j. = ããlrn e-'% ån* "/.,^,hs { a..,-. Ð beçø'u,.,þ*b t*1-,t*5, V, = trfu ;"/ l"t,s çlt [V,," (*)[' ='fi# t-w/t h,^, ahwl 4xl: (r') = (*) "^å (.ù = z* = (r') * 5 t\. (q {, rs syn,r*elùc =) (rl -- 3,3 = 3 (x*) rp crr s { tr*l ly,-lt,, *,ln'å! x =, > f<tll * (v* * (*') (y'). (*'} (x)=(v)=(u) ) l(",) =,' srn( r-= lztyt + zz nå (rì =(yð =&) c) -har qvul (È) j (È) É (") È = (n,,t) b) {hat (x) = (y) = (*} * sè (+) = (C>,<y>,e)). w kv',*, Ç-'-, e yu n^tqt"f - n åw *hv (ù = 'b.ul- 1" " (ù) =. tt is rj be c+,se (È) i-ptiss gar.e å,.qçh6r,*[i*y, Er\^c 'lvsþ {ne eìech.p^ is 4.s lf tn '.-È b Tt be '"d a.ï qs ù. í^e øva"ø.}? ptthèc' vç-q"\.' ìs,ò, à) "\\ the hyà.5t* t^/dvtarlcl-,c.ns æ eyn^ r!.eçr'c r (-]Uy5U ( )= Ò Ë' *t[.h^ g h V å r3æ"+ v) ^,v e G.r" h ø* ç- çlwcø (å) = e<-è), _fuu hy Àt3 {^ h- w9 ìr. pr',*a', r,+1-- àip k r**,.e*{-. in Ç t +,* ^d 3þ; h*v 6an rnl.'i..:r'è Àl g.r-le y rqe*k tn +'^a aha^à*"à *"åql, ^\G* ^ +'lnis. 13 c*.,e..0.*ty q. h"l- qvestr,^, t/ì phvs cç. lç yóu,rq t.,f.ust å, t r.n" in t EÐn Qxfft ' 'rci."'t^i /-,^F CP-vlla[' '"",

3 1 ì! ln l, in V^is ç**lt4.*n 4'L q\ qu'\' tgç1"-r. w uf{ be f"^ð we wyût tq kuraw {t^g gt \,:G' i i i+-y rí' *^* gnrnà çe <Te r$ {he h7å. len.t"r in çtde fir.e nu cttvs. å) 4irsf we'[\ ' cq\culk +,e era-et q^tww. rr". å;,rl { tþre r,'ru clevt. (^en ' tvrg È P;'ìðt'^g Ytne gteckn i,rc.ìåe b ls: r<b p C,-. b) =,t""l" åv.v rt * ìt b rs p.b^b itr flr ì ÄTq3 -n l" ' it L Ti- -.\ f f i--l- --/ p(r.u) =,., JF " - vl \./ 0 0 '- {' sinô J. àß À& --# [î" u"/ år,{lj \./ =# ;27" [r' * ar - i-'jl: e- tk,:{, 1v" lt3 in +qb\e dê ru{-cg.c \".. r,,be. 4l[rz -?r.h] =-k u -'/^ [t- * ab * t*'l * h- = a ' r-d Lz 7 t - 6r' la- r {'V") b l"l" (t * +) Ð iê we x?, ejtç;ç\^å t4* reçv't{- G"-, = \tx ntx'*fixsr.., Ð Ç, t'þ [*,esk- ràe,, W,Q-v^., x=-# <'L =w *#-TF, zb q' \r-4--æ-rá- (,-u" -?ø*@*?ë-+a - -ffi'sa' ú ::,/^ --qbl 3aÈ L-Ð/,ø,' -*. r.,. + -i_ h 3 a,'ë,t &.1-3Gr -E--bl r 3 6 s 2.9, ã : + N 3 4 * b- -_* q qb l SAu'teg å# "*# +--<<

4 c) ìf wq 499 u r'49. -Ì1"e p\\., c\e us, -^ò g'g9urtrt9-" P(..u) = V(.) is cnsleu-ìv. jrr-,-- t$,e ì t lt va\'.re te,{r(), í", ^ Vlr*s. lyc")1' sv,qq l{nrs r*wå Y,") ',, 3 -r"'þ=tr,'/ -3 a> " " ì iç a il9þ'*è9-':t-ï =le tj*-,j ' - b-ï-q3 g si*e 4 w *^ Bh+ rr ) iç þ= 4-''vnt ^^à Q. =). \ ytrlb')= h -L (f+i)= O,lx [ t 's k tv) ry lfte.e 'g \ yw L*, nn,rt - af e( t\\ e\ed"* l be rt Eiie ìt's l- p r!a^1- + þe<g ùn inò "^ r essvr!'ng l g çsr,hl,',1 ke-@ nvc\eq S. ÁwLVef, tt's wk* O,

5 f f t l ì-, l}'rs Þróbk r^rø Yhe sh4þ : 9(., ) = *t^e p.t abìb;*1 v\ --.gy*il\ dfru is: " " P (u= E,) cr = (V,*t g> P(r-- Er*) = c^.c i.ìe-" lu L"V å tõg.rc,.,.rþ* ir-, r ffi e '\u*\',, *^t,"* - hi (u) ttaþ q. b^øagvrentev-,h Ol- \he i"fc''vrq.( E,, lt e.h "5y { +1'.'egru.ò g+q\e- 'l(*,,. V)1" æ ztr frf *J t t %f 9(",) ç? Eî,,# ÀeÀþ J J 0 L+ïï- - l* -rl 'v'! -rftq : þ;"n 1 e e (z år" =6ff-r, 1 Ï--c*J-) - -. J e r'à. u5e - S-'- l*sþ--\3 :a3brr Lø+ï j ì., \' * Éþ ffi\' g.t.,ð siqle r* lt"e v _^å".+ ic þ e \ ) ll'en P=,,/

6 È1, " V tte p\ü îtrf, çe ç{ tlìs p.ubkr* \gt's rv'ii{ir,r tue e\ecl'r, be q s \'td s phqn-s r"t/ rad r vs t ez ce --æ )t J+rrs cô.^ei f,^ cq\ cu lh lhe evrerq y,,'equitqj FÞ a.gg.e*",bt^ "nq a c,l-c'v$(, e, dû 4ue' çvr{a.la. ay ' 'sp \ here. t'" hie[a ls. -- -L--LÊ ç- ZY'ffl Yg a,.,å f.,-n Ei",sLein, E = r"f = +#" # in -l.t^ is clv- w i3rtrs fine (ij-'., þ. J w ç q. Ç h,u the çtn,.3ã 16' ÂSer',[r\ A \ue spf't,'e). g - fe =- $Tfe, tt4a1t = z..bln *ì-rç* /. q ^eh"v Ë tt"en. a) if tl"e 'h l, glec hrø., 9þlrt9.St cê*". tt*f {trg"*t,ng ca". entcul*le tvre L =E/Z =w "{* cr rl hs øwgv tar *''e""' *itv&- - an, $,"ro--,. (uo*t c\ssrcrt hj*cl Ç. a çliò sphe.e =?^r' AV',e class i c\ anq v\arr,^/ = 'k: T v /r,.rfi st 1/= ffi*re?' av ccrrì "rç [k 'll,s Up tv\ c{ +*tt Ç.\c"t.l-e i+ ñn.: l^ f -- p(') r2 JV V -he'e V r! Ve[ctÞy 1Â.l - (6,26,t t 3Y s.r\ ì \.. = ç, l3x to' -ú : \11,7. c? \\,ay,s ',st! i^ {a."tits nl- physrtcat\y psrtb k b) ûs i frn "bv Y\re ele. i",..' c'n 'f,l"lt. f -l1ac. i*'s phv si celly t*^çs; bh. ìn {"tcf þ.je Vv,w ft+t the.e*[ eject"'n +\^r\+ t^^,læs thi rq5 wr>e åtatrn a. sphvri.g -*lv"ur, spherg" rqj ius ig rur,,øh g.^"qìlq. { ian (. t t c \err, \v. tltere's trhø q rlìq v\ \^e-te

7 in {v.;s Þ.bk*n wq 6xssr/^4q ".\- Eú.e a hyårg,. ql*..l \s t^ th stqle: h.* e í"e e.\ecl"* tn a) -^t t? 9V* (v \Y) = q J- 76 iç nrnnq.\ i*), f L t (t," V,) + (V,rr -(þlb).'"(þ.ì lvr,,) L, t!^ene *,r.* &a t\ne g qqi '.ELa{ 9 cê -\{,. f"yå-.g<,* çrl,t r,r L ìt vrlg: YewrgrVr -- 4r[t, r 1+ "i]= L ar.å l\ tt-e fe,-*s P W s"t.ea-ç <Y ly) t^ gern*\ r-.p".sq.k J g.' JV V^i*Yn,(,n, ct.e prescø.r{- bu tlf ica\\y chs g r cn t (nìernt bsis ' tçyc\ il" qt ar rgaórruc1\ *nj, (f,'e"* l*ø*) = Enn'L(.'^,,*t we V^e * tn àùih'"^, V^en 4r( si*,,ìïøn;* eiqens\ør,kg Ç â,f: **,à, L+ 'wf"ic,v, Q r-, a C.S.CÒ wi{t^, " Vngn, es få"g etc,.ï/r füølcl-l rs. g. \k. - t., 'lue p. LLø* {.. [r,r,w. wçtur{ * {.,r) e,xp "c!."þ d\n ualps +Ç -l'l^.esç ' aç,q,)rs, gr"rtr.h^q Yv,e exp cþ^hã^ øqlve5 wilt Ure retctli"elt åk"n*ut Fru.*k#. E Err = _Þ- + E,,, - + Ç-,= + /,'ìnc E-*t- b) <Ê) -- (E lê \q) = (gl r?e'l%,,) -lã,m,,)rl6gzr-rly' "[E,,l+,",) ar.å Enê* =t# w\revy < r! t4ne &t're sl^rucþ.e cnsl- E 6a,t= Et= t c t(' z L-*rr- 1_ (ù rêlv)= $l+[qe,\v") "?1v,,,) * *ry,,)"8f rv,,-,]l _ r 76 L tbetn lp, 't t * t-f,j= +==E

8 _**-j i ") <ù) = (* tl'['p] q"nj f t%,) -- f = (E l +tr[*1.y,ù * 3 Ìy,,,; - \t,,] + f,qe = (V[# [r 1ù,,") * 6l%,, ) - zty,,") + 2ñ e,(er r) T.f- f *) lv'u-,t tqr, )] = * h'l\z +- Ln) -- 3!9,- 36?'l JL,Z : q 6 a) <å) = (* lû' ly) q*à t -l% -) = k*tf-ø*) Vþ = <gltc-l+[vr,) * 3ttl4,,) - 19,,ù +J[ã lv,,-,]] = * u [r. 1Y,",] r J-t 1y",,) - ly.,") -Jiã lf,,-,t =#Èlq -tü = --J- L z 6 n ++nte, ',-t{,e '.ieurþ^t:e^ v",l,,e Ç e,*,ngl, <Ê) *J ;U'+.\ a,,9, n4-õr,\, <[=) â *[* yt psì]nvç sìnu w( c&q l*^yn chaase h r.p.ex t lù> n cr. b",sls *&' etge,vs\aks tnà Én r,,j + e(e+:l\ d,? a\ways çrìþ.ve L*) ccta b{ ^eg,y"ve hil^ r,.,rkesev\e,,^ra w( rtk-,v.\erç.ek Lz qs lhe nl<.^øl sgìa q:.c.ûz ç-l"rcl" )ç,çvtl be- teç,erc^lu a.s a. WVa.

9 ' 11 "l- -l t * S (?n 6vr1 ðwt lr1 lè{,-,)sàq Å11>*"'3 ^ à1 'rpj' }9?, t i"t+. '+'lb\? 5 ll,?nn 't'nqb,t a'l), vsllerr r,riàn6-uw -^\tap - b'^15 faltl\è r^lðv àt\ stll 5""ralsÅ* T l-, u\ '+-hå þ5r.1-5a{ 5ra1u,,ðå 'L-\^, 'bvé 'ur r}^rrp1 ttì b,tlsrrc* Þ1å å v\.þ?p ' 7x4+ ' ' (1 lvþ (ø vl ^ +r-ð \æ is" (- àß?ca\ sìo 'laf,ats c.q à\* ç?]önr. +\'tv ÅUrn Þ l,,ì L/Ð{aP ^ 4À \}Þ pu ãnr rsa\ \ ^ ãì1 :ssd + v s Sa1ølsvrabte /4-t tøaa1à9 1/Ðr{?s\,1â4 ró -..{" \raa-r u vl '5v\ìi/r21^^.øa11elå ùv1* sd (f,( l(.' \ t+ -- {ç ef e'}s.l 3^.,:{ JÁ P'p (-'"ô '* (J t f l' = (*'., \+z\".t) = ('"n^,\.j 1..,ô> (r {*'4 (.)t- (1*.),1"l(,tX1 = :èn"l 2rÐ A+,þ 'w#,lj u/,e rt,{ A2g abu,u3 (',? ;>l-þj = (,Jt# [,i,t,#>,) = ('?h l'*'''u4,> qas lr3'4rr0'/ v*'* 2q j a3.1.?rq atfln,7,'4,> J ffi *ul f >l a^13r'l )ç rrnera>! E ( llt! (:zt = ('"'t.j(6 *-t åj Å,te Jf = ('4,ô çu {**/r èvr uay ( þ l,^à "-"1Srr,t v awþ6?v1+ " þ "'O "'à -'-vr 1,trtrø q'aa*sa çr s ltâ þ ø'a z4rz -.O + Q-\- "tk Z =

10 Vns., -- R: Y u)he,s Y; qrc th f -the ì n th(s p r b[e.v-1 \^rd\\ lqke c,\ t k af í^ eçl a n, # Yøe angulcy cr'",ìe,,,rfr vr çera.l'.6 cn the øiqerrsþ,tes e{ ttç hyår.aeä 6 14*r, 'ra ther L.ås, r^,,e (\ '{-"t'ke'ø..{c[: & tlre ct\\*.*ò.^e. r'ec-r. çü, tx.s k-l'",. t4 ti l^yår3".". eqb-ur*- r cq\\ fl^"t[" fl^e Lyà.gt. qlt *, wût/q fu.,cþì*s ^.e \gi.+\\y *vìsg.^ 4*.![Qr pa...twavet{a^clì", û\e: v? + Vð-k- Yg" f Y** vi øe"r) yi \i -- k,l (e"t)-*[nr*r)yu*t' e Ït e: ") b) L, Y," = Y,' =Ð,\ L- li = f,7-j- l,'t = û- (É Tì = Fk t- Y,-' A :) L'_ y,'' = Ð ì b.,'l- rvr hcr"s Yhg cr\à \s vçe i- Y,-' JãY,-t= / ccrn.ëþ-* ril n d--.e c) û* i y," z Û- (tjã vn-') = t"fj 2 -õ* Y,' fz;-x;l å) r,., kr t1""d- i1 = Ll * Lf + vf \ C.n..d \ /\ -^' - { -. l_+ l-y - vy -! - v û.û-= t L t - Ly. *-l ^ 4 4 4! r :l L)Ly -\LyLy r-l.z 'Ly bul l-_l t-y ürû,r-ihl 4 \.. t t \ l(-thu7, L* L-. & ç nhtz -:à.1, t 2 L- L* L- \ A hl* r L: > {'1", * t É y,u i"t- Y, - h û"y, r L** Y,"

11 +. ìn -ì1.,ì: çclþa1 we y-< gtr'3 b,,*" d",t, ìnlegn-l + :thre,e çp\wnt Ccrl hic(r r'ì6r,; cç,.g.: fing çr c ble* r"ter.irn{. {r,i9 l's làe.la."t ê.,nàersbràind 1,6,[^f *C* LEer- øle.achns, âr A h/. w*'[[ (arry lust u*" LÁä n tagøa[r q^å l^t a.ke þ,g,ckthoç ' lqttr" a) F -- Y(n,4)*. X'(",&). y,'c",þ) y - å; y," = +F csh y: -, +lã dþe no Än*.,.,-,[. f = J J *tr y,' lt ";",e åå,$ : +F (Y, y,') =[õ s\nc1 Yi = /,'* a^j,í^a y " Êrneli "r.t ø,ë tr'ge""ql Ð v -- Y (",þ)* Y (s, Ö) V,' [", Ö ) Y (",þ)" [", ö) þ F (-, -, -É-E t aiþ çås J e ) -:ì = lgj srn(e ð J e siq3,'þ Jf Àe åft =î t t,þ Tr l" =#[r -rj = c) F--, y,'[r,ö)* /,-'c, +) y,'cr,þ) às,= +þ, 1"f.,^ =(") J JJS'' l/ å,[e y-r = f,{e-n- "å rt- 't ã Jln e -i{ S*'Ø r*-l = -]ij Ð F = Y,"(', Þ)" y," (n,ô) Y G,ö) Å"{ f-* r é\% J rå:z -- Ë ti=j J J cs3(e) s'n(") \eå{ = ij =.(s l ír 54---"t r- O \+r- r^cìte"^qh cc{ c53ç")rì^tr}å

12 e) F = Y' (,þ)* V, C",Þ) V;C*,&) jrjn =+Éf çy^[. f,ìn3e s*ø åeå& a yj (e,+)---+ tr- n'þ.'' cs Ø = +(å)0" s'l j ( r sì.,i.*s*"@ å,-tll 9_ tf - -- l.òj f) F = Y;' (u,4)' Yult t",ð} Y;'(ø, þ) i/rç * Ç,^ **lt e *...!i c hdw u 9" Êeed 1Ó Cr nst d r ìe: r ' l {Le G.* Y*(e,{)i ',1"i \ et*è ec") wl,q,e 66{ irr9,q(") s s/-'e {-*"h'^ < f O 14"qt \, lvrz ßr "rea ti *".h'* ce4q cìø',nb; lhw' JrJsz frw i+ beccnes thì ÕccarS G.. ur nz-'"frø) -f"utt'' àe a \, e\e*. ti^*t JFàt +O fl,*m -þ3= Ò ll -? ì(*1+.^, - *r) ù,6,f J?, {;ke áìnce $4 f,p..ñ O.,ly ' r Èt û inle v c)/ Tz- t,+wryq'. n *luq.j 3) if Q, = f {^^.' l*} = -(,.". t -- -l,,l cnfcxt, à pl.l,^, h" a*q',{.ør nan gnl'v 1 e--u 9Õ &eçe t þe.-q.ab,"vni filn' ee, çd 'e täl [..,a ^"rar.ics -iuq +.[*e p*løbiil*], pc, 6r tvr.r.sih^ b T-,eert ne a.ì-".ic t1*u ç ^tx,e. wtdèì*fed tcy G. phbn,tghln &*,*'uu'- 2_ (y,: \vni' Yni') f i, **,Ë'' TYä yä,),,,,:yfþå y\,.\n '-'- ct[" * Sl.n e

13 wtq,v"r we ^àà i..r huc\ear e pì^,. V&^sth:^ + sdçutrt çô/ we'l\ *uuj {= "JJ en[t, c- e^ile"r'q

14 g..,^. 14 f hts?( deta th,e ry"'.ah. t*"h en *:1" ejg{'", sþtes vrg ü.x'\s r rr Cd^S{4e4' lr" A Þ. #r È Ç\ spi.. -% Par! c\g.j 1,,g cl.aë< & È ' v_? h) = (å-i M.ei = e) = (i ) \ /. k** &s * ^ + f a 5n = ã\ì l,l.,q.1-g. [. -i J -rn {he rh e..t3e&r.a n,.t<j Vt^rt tn+ - ìgemshbe b^gis' $w f uje wanl- eö 6nÁ f't)* ",à lu)*. 6rEt ò"tâ,-,\c) = åir,e (tqev\veçlþrs f â", N..' 4Qr ns. \<.tb ç"å tk e-ìgenvàl,es: (;.å)l = Ð ^u-ë=n L L & '/ Wr - ìs nrh^t we w,,ij expecl srnc t1"e chica "Ê lrc^rii + øh',- abss ls ^r\ìtvø" l.t w w r- \- ta A- Ð ( sy -À ccr./ì ã Zt /\ s e q. r) tt,) = ( ) \cu a { *1^e l-f tt), ={-1t,) =. L l l L ) ) elgur^,veløre f ä us tng Å: lã f -\ z \r -ì)ft) t: c( -'ê= r,ä) (i) =(:) =) "( = -ìs 11)=È(l ) 'tt-. ft. )*- * + &-.\ **d 41.q recçl \ c5