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Category: Integration

x-8-x-2-4x-16-dx-

Question Number 7872 by tawakalitu last updated on 22/Sep/16 $$\int\frac{{x}\:−\:\mathrm{8}}{{x}^{\mathrm{2}} \:+\:\mathrm{4}{x}\:+\:\mathrm{16}}\:{dx} \\ $$ Commented by prakash jain last updated on 23/Sep/16 $$\frac{{x}−\mathrm{8}}{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{16}}=\frac{{x}−\mathrm{8}}{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}+\mathrm{12}} \\…

mathematics-prove-that-0-arctan-x-ln-1-x-2-1-x-2-dx-pi-2-ln-2-4-7-8-3-

Question Number 138940 by mnjuly1970 last updated on 20/Apr/21 $$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:…\:{mathematics}.. \\ $$$${prove}\:{that}: \\ $$$$\boldsymbol{\phi}=\int_{\mathrm{0}} ^{\:\infty} \frac{{arctan}\left({x}\right).{ln}\left(\mathrm{1}+{x}^{\mathrm{2}} \right)}{\mathrm{1}+{x}^{\mathrm{2}} }{dx} \\ $$$$\:\:\:=\frac{\pi^{\mathrm{2}} {ln}\left(\mathrm{2}\right)}{\mathrm{4}}+\frac{\mathrm{7}}{\mathrm{8}}\:\zeta\left(\mathrm{3}\right) \\ $$ Terms of…

find-f-x-0-1-e-t-ln-1-xt-2-dt-with-x-lt-1-2-calculate-0-1-e-t-ln-1-t-2-2-dt-

Question Number 73397 by mathmax by abdo last updated on 11/Nov/19 $${find}\:{f}\left({x}\right)=\int_{\mathrm{0}} ^{\mathrm{1}} \:{e}^{−{t}} {ln}\left(\mathrm{1}−{xt}^{\mathrm{2}} \right){dt}\:\:{with}\:\mid{x}\mid<\mathrm{1} \\ $$$$\left.\mathrm{2}\right){calculate}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:{e}^{−{t}} {ln}\left(\mathrm{1}−\frac{{t}^{\mathrm{2}} }{\mathrm{2}}\right){dt} \\ $$ Commented…

x-6-1-x-3-1-3-dx-

Question Number 138909 by bramlexs22 last updated on 19/Apr/21 $$\:\int\:\frac{\mathrm{x}^{\mathrm{6}} −\mathrm{1}}{\left(\mathrm{x}^{\mathrm{3}} −\mathrm{1}\right)^{\mathrm{3}} }\:\mathrm{dx}=? \\ $$ Answered by mathmax by abdo last updated on 20/Apr/21 $$\Phi=\int\:\:\frac{\mathrm{x}^{\mathrm{6}}…

let2x-1-t-x-t-1-2-dx-dt-2-t-1-t-2dt-2-1-4-t-t-t-dt-continue-it-

Question Number 7819 by akmishra last updated on 17/Sep/16 $${let}\mathrm{2}{x}+\mathrm{1}={t} \\ $$$$\:\:\:\:{x}=\left({t}−\mathrm{1}\right)/\mathrm{2} \\ $$$${dx}={dt}/\mathrm{2} \\ $$$$\int\left({t}−\mathrm{1}\right)\sqrt{{t}}/\mathrm{2}{dt}/\mathrm{2} \\ $$$$\mathrm{1}/\mathrm{4}\int\left({t}\sqrt{{t}}−\sqrt{{t}}\right){dt} \\ $$$${continue}…..{it}.. \\ $$$$\:\: \\ $$$$ \\…

Question-138889

Question Number 138889 by Algoritm last updated on 19/Apr/21 Commented by MJS_new last updated on 20/Apr/21 $$\mathrm{simply}\:\mathrm{let}\:{t}=\sqrt[{\mathrm{10}}]{{x}}\:\mathrm{and}\:\mathrm{then}\:\mathrm{solve}\:\mathrm{it}. \\ $$$$\mathrm{hint}:\:{t}^{\mathrm{4}} −{t}^{\mathrm{3}} +{t}^{\mathrm{2}} −{t}+\mathrm{1}=\frac{{t}^{\mathrm{5}} +\mathrm{1}}{{t}+\mathrm{1}} \\ $$…

tan-x-dx-k-

Question Number 7818 by akmishra last updated on 17/Sep/16 $$\int\sqrt{\mathrm{tan}\:{x}\:}{dx}=?+{k} \\ $$$$ \\ $$ Answered by prakash jain last updated on 26/Sep/16 $$\mathrm{An}\:\mathrm{answer}\:\mathrm{to}\:\mathrm{this}\:\mathrm{question}\:\mathrm{is}\:\mathrm{present} \\ $$$$\mathrm{in}\:\mathrm{question}\:\mathrm{119}.…