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(X + Y) 2 = X 2 + 2XY + Y 2 dk T;kferh; fu:i.k. X+Y. jes”k cMksuh. X+Y. mn~ns';. bl l= ds vUr esa Nk = (X + Y) 2 dk foLrkj tku ldsaxsA loZlfedk (X + Y) 2 = X 2 + 2XY + Y 2 dk T;kferh ; :i ls le> ldsaxsA. iwoZKku. Nk = pj jkf”k;ksa ds ; ksx o xq.kk ls ifjfpr gSaA
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(X + Y)2 = X2 + 2XY + Y2dk T;kferh; fu:i.k X+Y jes”kcMksuh X+Y
mn~ns'; bl l= dsvUresaNk= • (X + Y)2dkfoLrkjtkuldsaxsA • loZlfedk(X + Y)2 = X2 + 2XY + Y2dkT;kferh; :i ls le> ldsaxsA
iwoZKku • Nk= pjjkf”k;ksads ;ksx o xq.kklsifjfprgSaA • Nk= oxZ o vk;rdsxq.k/keksaZlsifjfprgSaA • Nk= oxZ o vk;rds {ks=Qydslw= lsifjfprgSaA b vk;r a oxZ a {ks=Qy = yEckbZ x pkSM+kbZ = a x b = ab a {ks=Qy = ¼Hkqtk½2= a x a = a2
ekuk ,d oxZ gS]ftldh izR;sd Hkqtk X + Y bdkbZ gSA X+Y Hkqtk Hkqtk X+Y bl oxZ dk {ks=Qy = ¼Hkqtk½2 gksxkA vr% {ks=Qy = (X + Y)2
X bdkbZ Hkqtk ds oxZ dk {ks=Qy ¼Hkqtk½2 {ks=Qy= X Hkqtk Hkqtk X {ks=Qy = X x X = X2
X yEckbZ rFkk Y pkSM+kbZ ds vk;r dk {ks=Qy {ks=Qy = yEckbZ x pkSM+kbZ yEckbZ X pkSM+kbZ Y {ks=Qy= XxY = XY
X yEckbZ rFkk Y pkSM+kbZ ds vk;r dk {ks=Qy {ks=Qy = yEckbZ x pkSM+kbZ pkSM+kbZ Y X yEckbZ {ks=Qy=Y x X = XY
Y bdkbZ Hkqtk ds oxZ dk {ks=Qy {ks=Qy = ¼Hkqtk½2 Y Hkqtk Hkqtk Y {ks=Qy=Y x Y = Y2
;fn XbdkbZHkqtkds ,d oxZ] XyEckbZrFkkYpkSM+kbZdsnksvk;r] rFkkYbdkbZHkqtkds ,d oxZdksla;ksftrdjsa& X X+Y Y Y X X+Y pkjksavkd`fr;ksadksfeykusijX + YHkqtkdk ,d oxZcurkgSA
Hkqtk X X yEckbZ X+Y Hkqtk Y Hkqtk pkSM+kbZ Hkqtk Y X Hkqtk yEckbZ pkSM+kbZ X+Y Hkqtk {ks=Qy= +Y2 X2 + XY + XY = X2 + 2XY +Y2 = (X + Y)2 (X + Y)2 = X2 + 2XY + Y2
blh izdkj (2X + Y)2dk foLrkj gksxk % Hkqtk 2X 2X yEckbZ 2X+Y Hkqtk Y Hkqtk pkSM+kbZ Hkqtk 2X Y Hkqtk yEckbZ pkSM+kbZ 2X+Y Hkqtk {ks=Qy= 4X2 + 2XY + 2XY +Y2 = 4X2 + 4XY +Y2 = (2X + Y)2 (2X + Y)2 = 4X2 + 4XY + Y2
vkdyu • (X + 2Y)2dkT;kfefr dh lgk;rklsfoLrkjdhft,A • (3P + 4R)2dkT;kfefr dh lgk;rklsfoLrkjdhft,A
fu"d’kZ • bl l= dsvUresaNk=ksa us • (X + Y)2dsfoLrkjdkstkukA • loZlfedk(X + Y)2 = X2 + 2XY + Y2dksT;kferh; :i ls le>kA