Page 309 - DECO403_MATHEMATICS_FOR_ECONOMISTS_PUNJABI

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'N

T[dkjoD 8H f;ZX eo' fe^
1 aa 2
a
c
1 b b 2 = (b − )(c − )(a − . ) b
1 cc 2
;ze/s^T[dkjoD 6 dh soQK fefonktK R 2 – R 1 ns/ R 3 – R 1 brkU.
T[dkjoD 9H f;ZX eo' fe^

b
a c
2
a 2 c 2 = abc (b − )(c c − )(a a − . ) b
b
3
a 3 c 3
b
jZb L C 1 ftZu a, C 2 ftZu b ns/ C 3 ftZu c B/Vbk j?,
1 1 1
∴ ;kofDe abc a= c
b
2
a 2 c 2
b
nZr/ T[dkjoD 7 dk jZb d/y'
T[dkjoD 10H f;ZX eo' fe^

1 1 1
a
a c = (ab − )(c − )( + +bc . )
− )(b
b
c
a
3
a 3 c 3
b
jZb L fdZsk j'fJnk ;kofDe

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