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VED1
E L-LOVELY-H math21-1 IInd 21-10-11 IIIrd 24-1-12 IVth 21-4-12 Vth 20-8-12 VIth 10-9-12

fJekJh^21 L ;kofDe L gqeko ns/ r[D^Xow

B = b 1 fi; gzesh ns/ ;szG ftZu nkT[Adk j? T[jBK B{z SZvD s/ gqkgs ;kofDe B'N

C = c 1 fi; gzesh ns/ ;szG ftZu nkT[Adk j? T[jBK B{z SZvD s/ gqkgs ;kofDe
fJZE/, a 1 gfjbh gzesh ns/ gfjb/ ;szG ftZu nkT[Adk j?l fJ; soQK fJjBK B{z SZvD s/ gqkgs
;kofDe

fJ;h soQK, b 1 gfjbh gzesh ns/ d{i/ ;szG ftZu nkT[Adk j?, fJ; soQK fJjBK B{z SZvD s/ gqkgs
;kofDe

ns/ c 1 gfjbh gzesh ns/ fsZi/ ;szG ftZu nkT[Adk j?, fJ; soQK fJjBK B{z SZvD s/ gqkgs ;kofDe

;wheoD (1) d[nkok, fdZs/ j'J/ ;kofDe dk ft;Eko eoB s/ d/yd/ jK^

Nk;e fsZih e'Nh dh ;kofDe ftZu gzeshnK ns/ ;szGK dh ;zfynk fezBh j[zdh j?<

(ii) gfjb/ ;szG d/ ;zxNeK (a 1 a 2 a 3 ) d/ ;kg/y ft;Eko (Expansion in Terms of First
Column)^
ebgBk eo' fe ∆ & a 1 P – a 2 Q + a 3 R HHHH(2)
fiZE/ P, Q, R eqw nB[;ko ;kofDeK B{z gqrN eod/ jB.
a 1 , a 2 ns/ a 3 fiBQK gzeshnK ns/ ;szGK ftZu nkT[Ad/ jB, T[jBK B{z SZv e/, T[Zgo dh soQK fbyD
s/^

∴ ;wheoD (2) d[nkok

;gPN j? fe T[go'es d'B'A ftXhnK d[nkok tZy^tZy ft;Eko eoB s/ fJZe jh cb gqkgs j[zdk j?.
fJZE/ T[b/y:'r j? fe jo/e ;kofDe dk fJZe fBPfus wkB j[zdk j? fijVk T[;dk gq;ko eoB s/
gqkgs j[zdk j?.

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