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Category: Integration

Prove-that-pi-2-0-sin-2x-1-cos-2y-1-d-1-2-x-y-x-y-

Question Number 219866 by Nicholas666 last updated on 02/May/25 $$\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{Prove}\:\mathrm{that}; \\ $$$$\:\:\:\:\:\underset{\:\mathrm{0}} {\int}^{\:\pi/\mathrm{2}} \:\mathrm{sin}^{\mathrm{2}{x}−\mathrm{1}} \theta\:\mathrm{cos}\:^{\mathrm{2}{y}−\mathrm{1}} \theta\:{d}\theta\:=\:\frac{\mathrm{1}}{\mathrm{2}}\:\frac{\Gamma\left({x}\right)\Gamma\left({y}\right)}{\Gamma\left({x}\right)+\Gamma\left({y}\right)}\:\:\:\:\: \\ $$$$\: \\ $$ Answered by MrGaster…

Question-219704

Question Number 219704 by Spillover last updated on 01/May/25 Answered by SdC355 last updated on 01/May/25 $$\:\int_{\mathrm{0}} ^{\:\mathrm{1}} \:\:\mathrm{ln}\left(\frac{\mathrm{1}}{{z}}−\mathrm{1}\right)\:\mathrm{d}{z}=\mathrm{0}\: \\ $$$$\int_{\mathrm{0}} ^{\:\rho} \:+\int_{\:\rho} ^{\:\mathrm{1}} =\mathrm{0}\:,\:\left(\rho<\mathrm{1}\right)…