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calculus-prove-dx-x-2-pi-2-cosh-x-4-1-




Question Number 133268 by mnjuly1970 last updated on 20/Feb/21
            ....calculus...    prove::     𝛗=∫_(−∞) ^( +∞) (dx/((x^2 +π^2 )cosh(x)))=(4/𝛑) −1
$$\:\:\:\:\:\:\:\:\:\:\:\:….{calculus}… \\ $$$$\:\:{prove}:: \\ $$$$\:\:\:\boldsymbol{\phi}=\int_{−\infty} ^{\:+\infty} \frac{{dx}}{\left({x}^{\mathrm{2}} +\pi^{\mathrm{2}} \right){cosh}\left({x}\right)}=\frac{\mathrm{4}}{\boldsymbol{\pi}}\:−\mathrm{1} \\ $$$$ \\ $$
Answered by Ajetunmobi last updated on 21/Feb/21
Commented by mnjuly1970 last updated on 23/Feb/21
thnks alot sir...
$${thnks}\:{alot}\:{sir}… \\ $$

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