Work problem

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Work problem

by roger federer » Sun Mar 07, 2010 2:08 pm
For which of the following function f is f(x)=f(1-x) for all x?

A. f(x)= 1-x
B. f(x)= 1-x2 (x square)
C. f(x)= x2 - (1-X)2
D. f(x)= x2(1-X)2
E. f(x)= x/1-x

Thank you

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