Question Number 46432 by rahul 19 last updated on 26/Oct/18 Commented by rahul 19 last updated on 29/Oct/18 $$?????? \\ $$ Commented by rahul 19…
Question Number 46423 by maxmathsup by imad last updated on 25/Oct/18 $${calculate}\:\int_{\mathrm{0}} ^{\infty} \:\:\frac{{arctan}\left({x}^{\mathrm{2}} \right)}{\mathrm{1}+{x}^{\mathrm{2}} }{dx} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 46418 by maxmathsup by imad last updated on 25/Oct/18 $${find}\:\:\int\int_{\left[\mathrm{0},\mathrm{1}\right]×\left[\mathrm{0},\mathrm{1}\right]} \left(\sqrt{{x}+\sqrt{{y}}}−\sqrt{{y}+\sqrt{{x}}}\right){dxdy} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 46369 by Joel578 last updated on 24/Oct/18 $$\int\:\frac{{dx}}{{x}\sqrt{{x}^{\mathrm{2}} \:+\:\mathrm{2}{x}\:−\:\mathrm{1}}}\:\:=\:\mathrm{tan}^{−\mathrm{1}} \left(\frac{{x}\:−\:\mathrm{1}}{\:\sqrt{{x}^{\mathrm{2}} \:+\:\mathrm{2}{x}\:−\:\mathrm{1}}}\right)\:+\:{C} \\ $$$$ \\ $$$$\mathrm{I}'\mathrm{m}\:\mathrm{confused}\:\mathrm{in}\:\mathrm{choosing}\:\mathrm{the}\:\mathrm{right}\:\mathrm{substitution} \\ $$$$\mathrm{so}\:\mathrm{that}\:\mathrm{we}\:\mathrm{can}\:\mathrm{get}\:\mathrm{the}\:\mathrm{result}\:\mathrm{above}. \\ $$$$\mathrm{Please}\:\mathrm{help}… \\ $$ Commented by…
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Question Number 111873 by bemath last updated on 05/Sep/20 $$\:\:\:\sqrt{{bemath}} \\ $$$$\int\:\frac{\mathrm{2}−\mathrm{cos}\:{x}}{\mathrm{2}+\mathrm{cos}\:{x}}\:{dx}\: \\ $$ Answered by Lordose last updated on 05/Sep/20 $$ \\ $$$$\boldsymbol{\mathrm{Set}}\:\boldsymbol{\mathrm{u}}=\boldsymbol{\mathrm{tan}}\frac{\boldsymbol{\mathrm{x}}}{\mathrm{2}}\:\Rightarrow\boldsymbol{\mathrm{du}}=\frac{\mathrm{1}}{\mathrm{2}}\boldsymbol{\mathrm{sec}}^{\mathrm{2}} \frac{\boldsymbol{\mathrm{x}}}{\mathrm{2}}\boldsymbol{\mathrm{dx}}…
Question Number 111859 by ajfour last updated on 05/Sep/20 $${I}=\int\frac{{dx}}{\left({x}^{\mathrm{2}} +\mathrm{2}{x}+\mathrm{3}\right)\sqrt{{x}^{\mathrm{2}} +{x}+\mathrm{3}}}\:=\:? \\ $$$${my}\:{try}.. \\ $$ Commented by Sarah85 last updated on 05/Sep/20 $$\mathrm{my}\:\mathrm{try}: \\…
Question Number 46323 by MJS last updated on 24/Oct/18 $$\left(\mathrm{1}{a}\right)\:\:\int\frac{{dx}}{\mathrm{e}^{\mathrm{5}{x}} +\mathrm{e}^{\mathrm{3}{x}} +\mathrm{e}^{\mathrm{2}{x}} }=? \\ $$$$\left(\mathrm{1}{b}\right)\:\:\int\frac{{dx}}{\mathrm{e}^{\mathrm{5}{x}} −\mathrm{e}^{\mathrm{3}{x}} −\mathrm{e}^{\mathrm{2}{x}} }=? \\ $$$$\left(\mathrm{2}{a}\right)\:\:\int\frac{{dx}}{{x}^{\frac{\mathrm{5}}{\mathrm{3}}} +{x}^{\frac{\mathrm{3}}{\mathrm{5}}} }=? \\ $$$$\left(\mathrm{2}{b}\right)\:\:\int\frac{{dx}}{{x}^{\frac{\mathrm{5}}{\mathrm{3}}} −{x}^{\frac{\mathrm{3}}{\mathrm{5}}}…
Question Number 111818 by bemath last updated on 05/Sep/20 $$\:\:\:\sqrt{{bemath}\:} \\ $$$$\left(\mathrm{1}\right)\int\:\frac{\mathrm{cos}\:{x}}{\mathrm{2}−\mathrm{cos}\:{x}}\:{dx}\: \\ $$$$\left(\mathrm{2}\right)\:{f}\left({x}\right)\:=\:\mid{x}^{\mathrm{3}} \mid\:\Rightarrow\:{f}\:'\left({x}\right)\:? \\ $$ Answered by bobhans last updated on 05/Sep/20 $$\mathrm{f}\left(\mathrm{x}\right)\:=\:\mid\mathrm{x}^{\mathrm{3}}…
Question Number 46252 by rahul 19 last updated on 23/Oct/18 Answered by MJS last updated on 23/Oct/18 $${r}=\sqrt{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} }=\sqrt{\left(\mathrm{cos}^{\mathrm{2}} \:\theta\:+\mathrm{sin}^{\mathrm{2}} \:\theta\right)\mathrm{cos}^{\mathrm{2}} \:\mathrm{4}\theta}=\mid\mathrm{cos}\:\mathrm{4}\theta\mid \\ $$$$\left.\Rightarrow\:{A}\right)…