Question Number 152244 by mnjuly1970 last updated on 26/Aug/21
$$ \\ $$ $$\:\:\:\:\:\:\boldsymbol{\phi}\::=\:\int_{\mathrm{0}} ^{\:\infty} \frac{\:{cos}\:\left({x}\:\right).{cosh}\:\left({x}\:\right)}{{cosh}\:\left(\pi{x}\:\right)}{dx}=? \\ $$ $$ \\ $$