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find-0-pi-2-cost-ln-tant-dt-




Question Number 28884 by abdo imad last updated on 31/Jan/18
find ∫_0 ^(π/2)   cost ln(tant)dt.
$${find}\:\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \:\:{cost}\:{ln}\left({tant}\right){dt}. \\ $$

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