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[Post New]16 May 2008 11:28:30 IST
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man111 (42)

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f: R --> R


f(x2 + f(x)) = x2 + f(x2)


Solve for all possible f(x)
    
[Post New]16 May 2008 15:28:07 IST
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mukundmadhav (460)

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f(x^2+f(-x))= f(x^2+f(x))
Implies f(x)=f(-x)
Can't get further..
Are you sure no other conditions are given?
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