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4. If(a+b) = +2b?. Show that a = b....
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4. If(a+b) = +2b?. Show that a = b.
11th - 12th Class
Maths
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( (a+b)^{2}=2 a^{2}+2 b^{2} ) ( a^{2}+b^{2}+2 a b=2 a^{2}+2 b^{2} ) ( 2 a b=a^{2}+b^{2} ) ( a^{2}+b^{2}-2 a b=0 ) ( (a-b)^{2}=0 ) ( a=b )
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