Page 23 - DECO403_MATHEMATICS_FOR_ECONOMISTS_HINDI

VED1
E\L-LOVELY-H\math1-2 IInd 21-10-11 IIIrd 8-1-12 IVth 21-4-12 Vth 20-8-12 VIth 10-9-12

bdkbZ iQyu

13- ;fn : D
9 9 9 8 E rks crkb, fd D;k fuEufyf[kr lEcU/ > dk esa? iQyu gSA dkj.k Hkh uksV
crkb,%

: D 8 9 9 9 9
9 9 8 9 8 E

: D
9 9 9 9 9 8 9 8 9
E

2x +  5, x > 9

−
14- ;fn C → tgk¡ : x −  2 1, x ∈ ( 9, 9)
 x − 4, x < − 9

rks ] ] 8 vkSj D E dk eku Kkr dhft,A

 x − 2 , x x ≥ 2
15- ;fn C → tgk¡ :  <mÙkj% -9 8 9 8 =
 x − 2, x < 2

esa 9 - vkSj dk eku Kkr dhft,A
9 tcfd 8 ≤ L 8

− 6x − 3, − 1 ≤ x ≤ 0,
16- ;fn : 
 3x − 3, 0 < x ≤ 1

iQyu dk Mksesu Kkr dhft,A

1
9  9 - 9 9 osQ eku Kkr dhft,A
2

lehdj.k ; : - dks gy dhft,A
mÙkj%

: D C 8 ≤ ≤ E 9 8 J 9 8 9 : 8 J M J

1-12 iQyu dk ys[kkfp=k & $

;fn : 9 dk dksbZ iQyu gks rks dks 9 99 9 9 vkfn eku nsus ij iQyu osQ eku Øe'k%

9 9 9 9 ;k 9 9 9 9 vkfn gksaxsA ;fn funsZ'kkad T;kfefr dh Hkk¡fr Av{k ij

vkSj A v{k ij vFkkZr~ dks vafdr djosQ fcUnqvksa D 9 E9 D 9 E9 9 D 9 E9 vkfn

dks vafdr djosQ ,d fu"dks.k oØ 0, / cuk fy;k tk; rks ;gh oØ iQyu dk ys[kkfp=k
dgykrk gSA
iQyu : dk ys[kkadu [khapus osQ fy, osQ oqQN pqus gq, ekuksa osQ fy, vFkkZr~ osQ eku Kkr
djosQ fuEu lkj.kh cuk yhft,µ

vc fcUnqvksa D8 9 8 E9 D8 9 8 E9 D8 9 8 E9 D-9 - E9 D 9 E9 D 9 E9 D E vkfn
dks oxk±fdr dkxt ij vafdr djosQ ,d fu"dks.k oØ cukb;sA ;gh oØ iQyu dk ys[kkfp=k dgyk;sxkA