find a problem in this task!

1. h.irr^r: G;[: Euti AY'
FltH '- 'Lz t0? o3
r) - tr;p:
rqL) n
= an "bn
a.h - a.b C, J
) At wz V Cv) dzu n 'v . wtrsz
rdrL p c e+L adllah I nna r
Zrrtrr.t
b
= o,o|'
6ab)v+r26atr*t- 5v+r
CabWr = ^b
-b? " nL
Cabv+t = oa Lr
f q-bt
,nl.,tt+ 14
= aV lr,
Un|uu ge*tap a
= Ca'.q.t -Llbz) + Cot,tlz tt a{i Earew i z= r
^ ( q,qz - LrLz)L.l (atb, 1L,4. )z
+bri
r,rlu
b,
qtL t b,' q,z *la:
" + L,z a," +Lt
d.zngtn ilev'',;'eim G Weruya'ean 6ruP

2. Z- ?iV) G flrv? Lqn untur tlenLilas e, lan t'z = e , a tG laitleL,i@atn
G Vo**LrLt{ peka|wrn lrr%*s ,
cab) th
-'a-r)
= &tta [-' ) a-
, Lqe ) o-,
= 6. Q-l
iP11lP :
:h"bit feLrnanq a,L (,2 f o
a"L = a.[ -k*ner.*
Pa, ILB meu:6 turtrrtop
enhil" g"Lrrzy,g q b,c (? to n"e,es =arL"U=('{-.L)ot/-l
fa.L-.
Cq-L
"a. - Cl, .c)
id r',.rXitrs e
fiernL;v; lm,er.s kQV t bnreo> G tnernettul'ti Ve4 anllst>
eragqotr- isdi G rneruPa Er n €ro uoP
,vT.

3. 4&-Q.(zn a*L,. q-b, ot,b eA,r,",e*,
i ?qLrLup : trzrertt peno)wnnXan Ava f,ilxrgzn
adolah iuq Ln$urn'uap l^;1 . k,lv[ di a L- , ( v
a Asoeiat;f : (t-r.or.an
) [ a+ C*b +a = "t + C t-h)+,r]
o"-L+rt = a.*C,t-b
2 a+L 4a,
Ji a,b €>
+ a,b. a,+(b+ob
e lnUers ("
a* e+^b , d,Tre e
b) a'*(ar
ynatp> , aE *o. -- q -b ^o,
la/,,
a,b = a -L -d, * 4
aL = a -b
aL -b' =
-- qL => *on",ruLri