Page 256 - DECO403_MATHEMATICS_FOR_ECONOMISTS_PUNJABI

VED1
E L-LOVELY-H math16-1 IInd 6-8-11 IIIrd 21-4-12 IVth 20-8-12 Vth 20-8-12 Vth 10-9-12

noEPk;soh dk rfDs

B'N x 2 y 2
T[dkoD 3H dhoxr'b/ + =1 dk y/socb gsk eo'.
a 2 b 2
jZb L dhoxr'b ABA B ′′ dk y/socb gsk eoBk j?. OAB dk y/socb gsk eoKr/ ns/
u"r[Dk eoB s/ nGhPN y/socb gsk j' ikJ/rk

∵

∴

⇒

fpzd{ B d/ bJh x = 0 ns/ A d/ bJh y = 0 oZyD s/, fpzd{ B s/ A d/ fBod/Pe nze eqw
nB[;ko (a, b) s/ (a, 0) j'Dr/.

∴

T[Zso
2
T[dkjoD 4H gotb y = 4ax ns/ fJ;dh BkGhbzp ihtk Bkb fxo/ y/so dk y/socb
gsk eo'.
jZb L gotb dk ;wheoD
2
y = 4ax
ns/ BkGhbzp ihtk dk ;wheoD x = a
BkGhbzp ihtk gotb s'A L ns/ L′ fpzd{nK T[Zs/ fwbdh j?.

′
nGhPN y/socb OL SLO j?.
i/eo A y/socb j't/, sK

T[Zso

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