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f-f-x-f-2-x-What-is-a-solution-




Question Number 12885 by FilupS last updated on 05/May/17
f(f(x))=f^2 (x)     What is a solution?
f(f(x))=f2(x)Whatisasolution?
Answered by mrW1 last updated on 05/May/17
u=f(x)  ⇒f(u)=u^2   ⇒f(x)=x^2
u=f(x)f(u)=u2f(x)=x2

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