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0-pi-4-tan-ln-1-tan-d-




Question Number 20404 by Yozzzzy last updated on 26/Aug/17
∫_0 ^( π/4) tan(θ)ln(1−tan(θ))dθ=?
$$\int_{\mathrm{0}} ^{\:\pi/\mathrm{4}} {tan}\left(\theta\right){ln}\left(\mathrm{1}−{tan}\left(\theta\right)\right){d}\theta=? \\ $$

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