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Double Composition (
Posted on 20190506
)
If f(f(x)) = 1  1/(x
^{4}
+2x
^{2}
+2), then find the value of f(0)
No Solution Yet
Submitted by
Danish Ahmed Khan
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One value
 Comment 1 of 2
Knowing that y = 1 / (x^2+1) is a solution to the functional equation, the only reasonable answer is f(0) = 1. But how would we know that all other solutions (which?) have the same function value at 0 ?
Posted by
JLo
on 20191222 08:13:07
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