student

1. 7 3 Lotthr,n Scrat
I
v'ttmpunan1' DOn..l at) moDQQU0llat) Carc ynomF AVbOtVAn tOnt,-tVan
D,tryCic.!.t l:in l.art P0 yjLtnlqen Vuqd fc+ bottVut :
4 'v7+tzx +ji =O
L,. xI- lJ x r z >0
C.*z+5r-tq=A
_
d.x''7r -14;tt
2qqaban
a. r<1+l?-> l3r = c
tlxt-l)Cxt5):o
(x:-7 avlu x=-i
b xz-13>'Y[-lL
(r-t.)fx-6)
:7 /J+aU
>()
:o
v--L
C. f7t6x-2,4 =to
(r,0)Lx-7)=c
Ix=-G c,tou Y:7
d z-3>-sE:a
( x-g (xt6)_-o
=g CttdLt r=-f