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mathematics-prove-that-0-arctan-x-ln-1-x-2-1-x-2-dx-pi-2-ln-2-4-7-8-3-




Question Number 138940 by mnjuly1970 last updated on 20/Apr/21
                     ... mathematics..  prove that:  𝛗=∫_0 ^( ∞) ((arctan(x).ln(1+x^2 ))/(1+x^2 ))dx     =((π^2 ln(2))/4)+(7/8) ζ(3)
mathematics..provethat:ϕ=0arctan(x).ln(1+x2)1+x2dx=π2ln(2)4+78ζ(3)

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