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f-R-R-x-y-R-f-f-x-f-y-f-x-y-f-xy-f-x-




Question Number 105234 by Josias last updated on 27/Jul/20
f:R→R  x,y∈R  f(f(x)f(y))+f(x+y)=f(xy)  f(x)=?
f:RRx,yRf(f(x)f(y))+f(x+y)=f(xy)f(x)=?

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