Page 104 - DECO403_MATHEMATICS_FOR_ECONOMISTS_HINDI

VED1
E\L-LOVELY-H\math4-1 IInd 6-8-11 IIIrd 24-1-12 IVth 21-4-12 Vth 20-8-12 VIth 10-9-12

vFkZ'kkfL=k;ksa dk xf.kr

uksV 2a 1
: : mÙkj
2at t
mnkgj.k 2- ;fn
vkSj
rks ; Kkr dhft,A
dx dy
gy % ;gk¡ : 8

θ vkSj :
θ
dθ dθ
dy dy dx b cosθ b
∴ = : =− cotθ mÙkj
dx d θ d θ − a sin θ a

iz'ukoyh 4-4

dy
Kkr dhft, %
dx
1- :

θ9 :
θ #" :
9 :

3- : * 9 : ;
3at 3at 2
4- ;fn : , y = 3 rks fl¼ dhft, fd
1 + t 3 1 + t
dy t (2 − t 3 ) dy 1
dx = 1 − 2t 3 dx Kkr dhft, tc : gSA
2

mÙkj
b
cosec θ 8 8

a
8 J

Lo&ewY;kadu

2- cgqfodYih; iz'u ) " 7/

µ

;fn vkSj osQ chp dksbZ ,slk lehdj.k fn;k gks ftls rqjar osQ fy, gy ugha fd;k tk losQ] rks
dks dk dkSu&lk iQyu dgsaxs\

vLi"V Li"V lekarj
laxr

;fn dk eku osQ :i esa Kkr fd;k tk losQ] rks dks dk dkSu&lk iQyu dgsaxs\

vLi"V Li"V lekarj
laxr
: dk eku gksxkµ

x x y y

− −
y y x x