Question
If $f(x) = {{(\tan 1^\circ )x + {{\log }_e}(123)} \over {x{{\log }_e}(1234) - (\tan 1^\circ )}},x > 0$, then the least value of $f(f(x)) + f\left( {f\left( {{4 \over x}} \right)} \right)$ is :
If $f(x) = {{(\tan 1^\circ )x + {{\log }_e}(123)} \over {x{{\log }_e}(1234) - (\tan 1^\circ )}},x > 0$, then the least value of $f(f(x)) + f\left( {f\left( {{4 \over x}} \right)} \right)$ is :