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Page 1: เฉลย M ath

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n,N! ? irr N?aSa ?'55 +

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wr!-6 J-g

arr.-r

ur ttrl o\^ dr+ Un{ B lm trqtn:0qvrovf,st

$.*r, x t 11? (xt1) : lx'-t x,P Lr., , txt-q =9 cx-fi I cx+tlr I

t

ffax vr- .)t e-\f3 -+ f{; lt- tlt , C-,li)?-l ,#-' -g$+',q f,\' 6f9

x"f,g ? vr4 s *t f,rl =c&f-.r cfgl -)E-',[Y

-. re ,ffI

rl

$tor, o fr,l ,l-Qr-B

.lcet, 6+-i{ 3 t,8 xl(l), -l tie8 {,-t), -t + t}= t0 lnr, c -?.x+?? r o

$t-,,):{t+gJs.-WX , a'-9r-7r-tporlrarjr ! nntu{.tutoroui ,COrrU

r ? fit #

& *to .2 g +ra) g w,?

l,z),g-t! e-to l,tr, t]-lt