,i_f ,'-6*/t 7)'*l\x-lf (' ,Y)=

I dv,hili^ d'ninr' NnAq-,c/L ' L 16x-Gltlq= : )x+)y

91 = -e x *,8YJ7

f *=o f t*t* Lx-GY*L\=o)dx ((a* +I-Grt,l1=o lt6 3\-\=-o =-)x -3Y/+ =O(21

-2a.,f I [ty)

z* tL -).t - €\ tt) =cc t Jy-lL* h8 ) - Gy +t\ ;c,

\)(Y=)f =) ( *--3/

f ,r )'* r\l rrh = o l', f ,r'-, tt 'r + t =o

1*=r7 ( x*/11)t8)*B=o& - b'Aor= $zq - 288 ,36 ,) Yr = t|*i = + =1=t Y1:8

'lr= t%-, Vr,t =)Xs: h

yf h"\ro/?r,1^

e x-6

: -$

P,(u, g) r p, (r,,\)

=) L, ftt-b'= (e *e 1r B -3L

( I'f-a xJy .., i :

Q *t- (o x-6trr,)y

G6r+re l)', = tB

k-8 =?xz

b, J?{)x)Y

c = {.1-;3)'

3 E[r,) = vasp *t)\ = 86\ --t\q -Yrcc > o => Pt -N & *fi;Wd k-*C*-G ; FCr,), C.B-6 =h8-(=kZ)o =) P, f*/ "d rrx>ni>", Lro(

f (rz), to B, h - thh > o => fz - Pc7. txTeEn

'fl ' 6^-6 ) p/fa) : 6'\ -G =2\ )o --> Fz ff {4 -,.nc,i t rD(