Question Number 171612 by mathlove last updated on 18/Jun/22
$${f}\left({f}\left({x}\right)\right)=\frac{\mathrm{1}}{\mathrm{1}+{x}^{\mathrm{2}} }\:\:\:\:\:\:\:\:{f}\left({x}\right)=? \\ $$
Commented by mr W last updated on 19/Jun/22
$${i}\:{don}'{t}\:{think}\:{such}\:{a}\:{function}\:{equation} \\ $$$${is}\:{solvable}.\:{if}\:{you}\:{have}\:{a}\:{solution}, \\ $$$${please}\:{share}! \\ $$
Commented by mathlove last updated on 19/Jun/22
$${i}\:{havd}\:{difrent}\:{in}\:{this}\:{qustion} \\ $$
Commented by mr W last updated on 19/Jun/22
$${what}\:{do}\:{you}\:{mean}? \\ $$
Commented by mathlove last updated on 19/Jun/22
$${i}\:{have}\:{a}\:{hard}\:{time} \\ $$$${answering}\:{this}\:{question} \\ $$