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

Question Number 133268 by mnjuly1970 last updated on 20/Feb/21

\dots . c a l c u l u s \dots

p r o v e ::

ϕ = \int_{- \infty}^{+ \infty} \frac{d x}{(x^{2} + π^{2}) c o s h (x)} = \frac{4}{π} - 1

Answered by Ajetunmobi last updated on 21/Feb/21

Commented by mnjuly1970 last updated on 23/Feb/21

t h n k s a l o t s i r \dots