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Category: Integration

1-tan-1-x-2-dx-2-tan-1-x-dx-

Question Number 117342 by bemath last updated on 11/Oct/20 $$\:\left(\mathrm{1}\right)\int\:\left(\mathrm{tan}^{−\mathrm{1}} \left(\mathrm{x}\right)\right)^{\mathrm{2}} \:\mathrm{dx}\:=\:? \\ $$$$\left(\mathrm{2}\right)\:\int\:\mathrm{tan}^{−\mathrm{1}} \left(\sqrt{\mathrm{x}}\right)\:\mathrm{dx}\:=? \\ $$ Answered by mathmax by abdo last updated on…

Question-117311

Question Number 117311 by eric last updated on 10/Oct/20 Answered by Dwaipayan Shikari last updated on 10/Oct/20 $$\underset{{n}=\mathrm{0}} {\overset{\infty} {\sum}}\frac{\left(−\mathrm{1}\right)^{{n}} }{\mathrm{2}{n}+\mathrm{1}}=\mathrm{1}−\frac{\mathrm{1}}{\mathrm{3}}+\frac{\mathrm{1}}{\mathrm{5}}−\frac{\mathrm{1}}{\mathrm{7}}+….. \\ $$$${tan}^{−\mathrm{1}} {x}={x}−\frac{{x}^{\mathrm{3}} }{\mathrm{3}}+\frac{{x}^{\mathrm{5}}…

Question-51733

Question Number 51733 by Tinkutara last updated on 30/Dec/18 Commented by maxmathsup by imad last updated on 30/Dec/18 $${let}\:{I}\:=\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \:\:\:\:\:\frac{{dx}}{{a}^{\mathrm{2}} {cos}^{\mathrm{2}} {x}\:+{b}^{\mathrm{2}} {sin}^{\mathrm{2}} {x}}\:\Rightarrow{I}\:=\int_{\mathrm{0}}…

0-pi-4-dx-sin-x-1-1-

Question Number 182769 by cortano1 last updated on 14/Dec/22 $$\:\:\:\underset{\mathrm{0}} {\overset{\pi/\mathrm{4}} {\int}}\:\frac{{dx}}{\mathrm{sin}\:\left({x}−\mathrm{1}\right)−\mathrm{1}}\:=?\: \\ $$ Answered by ARUNG_Brandon_MBU last updated on 14/Dec/22 $${I}=\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{4}}} \frac{{dx}}{\mathrm{sin}\left({x}−\mathrm{1}\right)−\mathrm{1}}=\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{4}}}…