(a+b) 2 =a 2 +b 2 +2ab SRyxI – A`TvIN ivSw – gixq hrdIp kor ssss AYm.AYs gyt, AimRqsr

loVINdI sm`grI rMgdwr kwgz dI SIt kYNcI jumYtrI bwks PYvIkol Qrmokol dI SIt

iek sPYd kwgz dI SIt lE

ies au`qy ie`k vrg iK`co

ies vrg nUM k`t lE

ies vrg nMU do vrgW qy do AwieqW iv`c vMf lE

mMn lE iek vrg dI Bujw a hY

A

Awieq dI lMbweI b qy cOVweI a mMn lE

B A A

mMn lE dUjy vrg dI Bujw b hY

B A B B A

ies qrW dUjy Awieq dI lMbweI b qy cOVweI a ho jwvygI

A B A A B B B

B B B BA A A A A² B² AB

kYNcI nwl k`t lE

Bujw a vwly vrg dy mwp dw rMgIn kwgz k`t lE

a Bujw vwly vrg dy mwp dy k`ty hoey rMgIn kwgz nMU icpkw dE

31 AiBAws

32 hyT ilKIAW sMiKAwvW dw vrg sUqr (a+b)2=a2+2ab+b2 dI shwieqw nwl pqw kro:

33 au~qr