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BCHL85
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#1
Report Thread starter 15 years ago
#1
Find the function f : N -> N so that
f(a^2 + b^2) = f(a^2) + f(b^2)
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dvs
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#2
Report 15 years ago
#2
f(x) = x
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BCHL85
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#3
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Ah, I forgot the question is find all the functions
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BCHL85
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#4
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(Original post by dvs)
f(x) = x
Is it unique?
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dvs
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#5
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#5
(Original post by BCHL85)
Is it unique?
I think so.
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