Page 320 - DECO403_MATHEMATICS_FOR_ECONOMISTS_HINDI

VED1
E\L-LOVELY-H\math20-1 IInd 6-8-11 IIIrd 24-1-12 IVth 21-4-12 VIth 10-9-12 VIIth 11-5-13

vFkZ'kkfL=k;ksa dk xf.kr

uksV −28 7
vr% , =
−24 6

− 9 3
, =
− 24 8

VkLd nks pjksa okyk ,d ;qxir lehdj.k fy[ksaA

vkb;s] vc fuEufyf[kr ;qxir lehdj.kksa osQ leqPp; ij fopkj djsaµ
0 0 ,

0 0 ,

0 0 ,

mi;qZDr lehdj.kksa dks Øsej osQ fu;e 8
( osQ vuqlkj vkO;wg osQ :i esa fuEu izdkj fy[kk tk
ldrk gSµ

, * !
;gk¡]
, xq.kkad dk O;wg gS

 a a 12 a 12  11


, a 21 a 22 a 23  

  a 32 a 33 a  31
, pjksa dk LrEHk lfn'k
 x  1


, x 2 vkSj , vpjksa dk LrEHk lfn'k


  x  3
 z  1

- , z 2  

  z  3

lehdj.k ! dks
ls iwoZ xq.ku djus ij

,
-

vFkok ,
- .∴

, ,/
 x  1  c c 31  11  c z 1  21
  1    
vFkok  x 2  , ||  c 12 c 22 c 32   z 2 
A
  x  3   c 33 c  13   z 3 c  23
;gk¡ osQ laxr lg[k.M gSaA

3 31
vr,o , 111 + z c 2 21 + z c z c
||
A
blh izdkj] rFkk dk eku fudkyk tk ldrk gSA