Define the function f(x)=2x/(1−x^2). Find the number of distinct real solutions of the equation f^(5)(x)=x.

2 answers

This is ambiguous notation. Do you mean

5th power of f(x)
5th derivative of f(x)
f(f(f(f(f(x)))))

Hard to say from what is here.
i mean f^(5)(x)=f(f(f(f(f(x))))).