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USAMO 2002 Problem 4
- Phlembac Adib Hasan
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Find all functions $f:\mathbb R\to \mathbb R$ such that\[f(x^2-y^2)=xf(x)-yf(y)\]
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- Tahmid Hasan
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Re: USAMO 2002 Problem 4
বড় ভালবাসি তোমায়,মা