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Category: Integration

0-2-x-2-2x-1-dx-

Question Number 165685 by daus last updated on 06/Feb/22 $$\:_{\mathrm{0}} \int^{\mathrm{2}} \mid\:{x}^{\mathrm{2}} −\mathrm{2}{x}+\mathrm{1}\:\mid\:{dx}\:=?\: \\ $$ Answered by TheSupreme last updated on 07/Feb/22 $$\int_{\mathrm{0}} ^{\mathrm{2}} \mid\left({x}−\mathrm{1}\right)^{\mathrm{2}}…

1-calculate-cos-x-n-x-2-x-1-dx-with-n-integr-natural-2-find-the-value-of-cos-x-2n-x-2-x-1-dx-3-calculate-cos-pi-x-3-

Question Number 34593 by abdo mathsup 649 cc last updated on 08/May/18 $$\left.\mathrm{1}\right)\:{calculate}\:\:\int_{−\infty} ^{+\infty} \:\:\:\frac{{cos}\left(\alpha{x}^{{n}} \right)}{{x}^{\mathrm{2}} \:+{x}\:+\mathrm{1}}\:{dx}\:\:{with}\:{n}\:{integr} \\ $$$${natural} \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{value}\:{of}\:\:\:\int_{−\infty} ^{\infty} \:\:\:\:\frac{{cos}\left(\:\alpha\:{x}^{\mathrm{2}{n}} \right)}{{x}^{\mathrm{2}} \:+{x}\:+\mathrm{1}}{dx}…

calculate-cosx-cos-3x-dx-

Question Number 100088 by mathmax by abdo last updated on 24/Jun/20 $$\mathrm{calculate}\:\int\:\frac{\mathrm{cosx}}{\mathrm{cos}\left(\mathrm{3x}\right)}\mathrm{dx} \\ $$ Commented by Dwaipayan Shikari last updated on 24/Jun/20 $$−\frac{\mathrm{1}}{\mathrm{2}\sqrt{\mathrm{3}}}{log}\left(\frac{\sqrt{\mathrm{3}}{sin}\theta−{cos}\theta}{\:\sqrt{\mathrm{3}}{sin}\theta+{cos}\theta}\right)+{Constant} \\ $$…

0-1-dx-x-x-1-3-x-1-4-

Question Number 165615 by cortano1 last updated on 05/Feb/22 $$\:\int_{\:\mathrm{0}} ^{\:\mathrm{1}} \:\frac{{dx}}{\:\sqrt{{x}}\:\left(\sqrt[{\mathrm{3}}]{{x}}+\sqrt[{\mathrm{4}}]{{x}}\right)}=? \\ $$ Answered by Ar Brandon last updated on 05/Feb/22 $${I}=\int_{\mathrm{0}} ^{\mathrm{1}} \frac{{dx}}{\:\sqrt{{x}}\left(\sqrt[{\mathrm{3}}]{{x}}+\sqrt[{\mathrm{4}}]{{x}}\right)}\:,\:{x}={t}^{\mathrm{12}}…