Question Number 126316 by benjo_mathlover last updated on 19/Dec/20 $$\:\:\underset{\:\sqrt{\mathrm{2}}} {\overset{\mathrm{2}{e}^{\sqrt{\mathrm{2}}} } {\int}}\mathrm{ln}\:\left(\frac{{e}^{{x}} +{e}^{−{x}} }{\mathrm{9}\sqrt{{x}}}\right){dx}\:?\: \\ $$ Commented by liberty last updated on 19/Dec/20 $$\int\:\left(\mathrm{ln}\left(\:{e}^{{x}}…
Question Number 126315 by MathSh last updated on 19/Dec/20 $$\int\frac{\mathrm{1}}{{dx}}=? \\ $$ Answered by Olaf last updated on 19/Dec/20 $$\mathrm{No}\:\mathrm{mathematical}\:\mathrm{meaning}. \\ $$ Terms of Service…
Question Number 126314 by benjo_mathlover last updated on 19/Dec/20 $$\:\:\int\:\frac{{dx}}{\left(\mathrm{1}+{x}^{\mathrm{2}} \right)\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }}\:? \\ $$ Answered by Dwaipayan Shikari last updated on 19/Dec/20 $$\int\frac{{dx}}{\left(\mathrm{1}+{x}^{\mathrm{2}} \right)\sqrt{\mathrm{1}−{x}^{\mathrm{2}} }}\:\:\:\:\:\:\:\:{x}={sin}\theta…
Question Number 126298 by bramlexs22 last updated on 19/Dec/20 $$\:\:\int_{\:\mathrm{0}} ^{\:\sqrt{\mathrm{ln}\:\left(\pi/\mathrm{2}\right)}} {xe}^{{x}^{\mathrm{2}} } \mathrm{sin}\:\left({e}^{{x}^{\mathrm{2}} } \right)\:{dx}\:? \\ $$ Answered by liberty last updated on 19/Dec/20…
Question Number 126274 by bramlexs22 last updated on 19/Dec/20 Answered by liberty last updated on 19/Dec/20 $$\:{letting}\:{x}=\sqrt{\mathrm{2}}\:\mathrm{sec}\:\ell\:{with}\:\rightarrow\begin{cases}{\ell=\frac{\pi}{\mathrm{2}}}\\{\ell=\frac{\pi}{\mathrm{4}}}\end{cases} \\ $$$$\:\int_{\pi/\mathrm{4}} ^{\:\pi/\mathrm{2}} \:\frac{\sqrt{\mathrm{2}}\:\mathrm{sec}\:\ell\:\mathrm{tan}\:\ell}{\:\sqrt{\mathrm{2}}\:\mathrm{sec}\:\ell\:\sqrt{\mathrm{2tan}\:^{\mathrm{2}} \ell}}\:{d}\ell\:= \\ $$$$\frac{\mathrm{1}}{\:\sqrt{\mathrm{2}}}\int\:{d}\ell\:=\:\frac{\mathrm{1}}{\:\sqrt{\mathrm{2}}}\:\left[\:\frac{\pi}{\mathrm{2}}−\frac{\pi}{\mathrm{4}}\:\right]\:=\:\frac{\pi}{\mathrm{4}\sqrt{\mathrm{2}}}\:=\:\frac{\pi\sqrt{\mathrm{2}}}{\mathrm{8}}\: \\…
Question Number 191811 by mathlove last updated on 01/May/23 $$\int{x}^{\mathrm{2}} {e}^{−{x}} {dx}=? \\ $$ Answered by Spillover last updated on 01/May/23 $${use}\:{by}\:{parts} \\ $$ Answered…
Question Number 60739 by Forkum Michael Choungong last updated on 25/May/19 $${evaluate}\:\: \\ $$$${i}.\int\:\left(\frac{{x}+\mathrm{1}}{{x}−\mathrm{1}}\right){dx} \\ $$$${ii}.\:\:\int_{\mathrm{0}} ^{\pi} \left(\mathrm{2}{cosxsinx}\right){dx}\:\: \\ $$$${iii}.\:\:\int_{\frac{\pi}{\mathrm{3}\:}\:} ^{\pi} \left(\frac{{sin}\mathrm{2}{x}}{{cos}\mathrm{2}{x}}\right){dx} \\ $$ Commented…
Question Number 126273 by bramlexs22 last updated on 19/Dec/20 Commented by talminator2856791 last updated on 19/Dec/20 $$\:\mathrm{we}\:\mathrm{dont}\:\mathrm{do}\:\mathrm{science}\:\mathrm{here}.\:\mathrm{only}\:\mathrm{mathematics} \\ $$ Commented by mr W last updated…
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Question Number 126266 by bramlexs22 last updated on 18/Dec/20 $$\:{solve}\:\int_{\mathrm{0}} ^{\:\mathrm{1}} \frac{\mathrm{1}−{x}^{\mathrm{2}} }{\left(\mathrm{1}+{x}^{\mathrm{2}} \right)\sqrt{\mathrm{1}+{x}^{\mathrm{4}} }}\:{dx}\:?\: \\ $$ Answered by liberty last updated on 19/Dec/20 $${N}=\int_{\mathrm{0}}…