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Question Number 142681 by mnjuly1970 last updated on 03/Jun/21

$$$$$$provethat::$$$$\mathit{\varphi }:={\int }_0^{\mathrm{\infty }}\frac{ln(1+cos\left(x\right))}{1+e^x}dx=0$$$$................$$$$$$

Commented by Dwaipayan Shikari last updated on 04/Jun/21

$$Seemstobe0.Butthereislittlespikeonthepositivehalf$$

Commented by Dwaipayan Shikari last updated on 04/Jun/21

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