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11. सरल कीजिए : (685+4.16) + (68.5-4.16) 685x685+4.16x4.16 (1) 1 (2) 2 (3) 1125 (4) 685

11th - 12th Class
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11. (2) (68.5+4.16)2 +(685-4.162 685x 68.5+ 4.16 x 4.16 ART 68.5 = a 24 4.16 = b .: 240196 = (a + b)2 + (a - b)2 a² +6² _a+b+ 2ab + a2 + b2 - 2ab a’+b? 2(a + b ) ca +62) = 2
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