1. 9or --?
f-f +?-
sfiilovs f,'l/,r si[e*
2 T ^t
L= tv
rl g
0nss walh plg
gP' -- q (tt')
$P"=
qt +4r
3p'- rlr -- qt
4L = flP'-tln
t= !I4t
4
TD
h=! - t] -Ll _t
2v zxL
--'--
q I
K= !g--r 4rzx-r3 - L-t-
4a 1xz
- loLl - lL -
-170 =-lS
K
"' z(x- D' -ls
Pf0

2. b orl
TU-f -ts=I @ :c:-blm
2q
2(x-tf = t5 =-(v-lJm
&-,)- . )S 2yz
&--,1 : t,
'1 L N l6_-tot7
,t
X*l - 4r s. qt,,W
q) =
Ll
r-- IVt + I
=fus
I
, . )L - !,jtl L-_ -l,lLl lr )C= q + lO,I3 v - 4^lo'Qs
/-
4 +
x L= - t,7l
-
7 7z'l'1L{
"' L < 2,7
tq -tqq
fuu) - ts
v)1