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Category: Integration

calculate-I-a-1-a-a-ln-x-1-x-2-dx-with-a-gt-0-2-calculate-0-ln-x-1-x-2-dx-

Question Number 34662 by math khazana by abdo last updated on 09/May/18 $${calculate}\:{I}\left({a}\right)\:\:=\int_{\frac{\mathrm{1}}{{a}}} ^{{a}} \:\:\frac{{ln}\left({x}\right)}{\mathrm{1}+{x}^{\mathrm{2}} }\:{dx}\:\:{with}\:{a}>\mathrm{0} \\ $$$$\left.\mathrm{2}\right)\:{calculate}\:\:\int_{\mathrm{0}} ^{+\infty} \:\:\frac{{ln}\left({x}\right)}{\mathrm{1}+{x}^{\mathrm{2}} }\:{dx}\:. \\ $$ Terms of…

x-2-e-x-dx-

Question Number 100191 by bobhans last updated on 25/Jun/20 $$\int\:{x}^{\mathrm{2}} \:{e}^{{x}} \:{dx}\:? \\ $$ Commented by bobhans last updated on 25/Jun/20 $$\mathrm{D}.\mathrm{I}\:\mathrm{method}\:\Rightarrow\:{x}^{\mathrm{2}} {e}^{{x}} −\mathrm{2}{xe}^{{x}} +\mathrm{2}{e}^{{x}}…

calculate-A-0-1-ln-1-ix-dx-2-calculate-0-1-ln-1-ix-dx-i-2-1-

Question Number 34635 by abdo mathsup 649 cc last updated on 09/May/18 $${calculate}\:{A}\left(\alpha\right)\:\:=\:\int_{\mathrm{0}} ^{\mathrm{1}} \:{ln}\left(\mathrm{1}+\alpha{ix}\right){dx} \\ $$$$\left.\mathrm{2}\right)\:{calculate}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:{ln}\left(\mathrm{1}+{ix}\right)\:{dx}\:\:\:\:\left({i}^{\mathrm{2}} \:=−\mathrm{1}\right) \\ $$ Commented by tanmay.chaudhury50@gmail.com…

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}…