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Category: Integration

1-prove-that-0-1-arctant-t-dt-0-1-lnt-1-t-2-dt-2-find-0-1-arctant-t-dt-at-form-of-serie-

Question Number 32731 by caravan msup abdo. last updated on 31/Mar/18 $$\left.\mathrm{1}\right)\:{prove}\:{that}\:\:\int_{\mathrm{0}} ^{\mathrm{1}} \:\frac{{arctant}}{{t}}{dt}=−\int_{\mathrm{0}} ^{\mathrm{1}} \:\:\frac{{lnt}}{\mathrm{1}+{t}^{\mathrm{2}} }{dt} \\ $$$$\left.\mathrm{2}\right)\:{find}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:\frac{{arctant}}{{t}}{dt}\:{at}\:{form}\:{of}\:{serie} \\ $$ Terms of…

let-x-gt-0-and-f-x-x-e-t-t-dt-1-calculate-f-x-2-find-lim-x-xf-x-and-lim-x-0-xf-x-

Question Number 32721 by caravan msup abdo. last updated on 31/Mar/18 $${let}\:{x}>\mathrm{0}\:{and}\:{f}\left({x}\right)=\int_{{x}} ^{+\infty} \:\:\frac{{e}^{−{t}} }{{t}}{dt} \\ $$$$\left.\mathrm{1}\right){calculate}\:{f}^{'} \left({x}\right) \\ $$$$\left.\mathrm{2}\right)\:{find}\:{lim}_{{x}\rightarrow+\infty} {xf}\left({x}\right)\:{and}\:{lim}_{{x}\rightarrow\mathrm{0}^{+} } {xf}\left({x}\right). \\ $$…

0-1-arccotgh-x-1-x-2-dx-by-M-A-

Question Number 163789 by amin96 last updated on 10/Jan/22 $$\int_{\mathrm{0}} ^{\mathrm{1}} \frac{\boldsymbol{{arccotgh}}\left(\boldsymbol{{x}}\right)}{\mathrm{1}−\boldsymbol{{x}}^{\mathrm{2}} }\boldsymbol{{dx}}=? \\ $$$$\boldsymbol{{by}}\:\boldsymbol{{M}}.\boldsymbol{{A}} \\ $$ Commented by MJS_new last updated on 10/Jan/22 $$\mathrm{tanh}\:{x}\:=\frac{\mathrm{e}^{\mathrm{2}{x}}…