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Discussion: Calculus Made Easy App tool
Topic: Try to solve this.
Related Item: http://mathforum.org/mathtools/tool/3522/


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Subject:   RE: Try to solve this.
Author: Betty14
Date: Aug 20 2004
2) Find fof(x) for f(x)= x...if x is rational
> 1-x...if x is irrational.

Well, no 2 is easy.
If x is rational, then fof(x) = f(x) = x.
if x is irrational, then fof(x) = f(1-x) = 1- (1-x) = x.
Thus, fof(x) = x no matter x is or is not rational.

Betty

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