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Category: Differentiation

0-sin-3-x-ln-x-x-dx-pi-8-ln-3-2-solution-0-3-4-sin-x-1-4-sin-3x-x-ln-x-dx-3-4-pi-2-1-4-0-sin-3

Question Number 159526 by mnjuly1970 last updated on 18/Nov/21 $$ \\ $$$$\:\:\Omega=\:\int_{\mathrm{0}} ^{\:\infty} \frac{\:{sin}^{\:\mathrm{3}} \left({x}\right){ln}\left({x}\right)}{{x}}\:{dx}\overset{??} {=}\frac{\pi}{\mathrm{8}}\:\left({ln}\left(\mathrm{3}\right)−\mathrm{2}\gamma\right) \\ $$$$−−−−− \\ $$$$\:\:\:\:\:\:{solution}.. \\ $$$$\:\:\:\:\Omega=\int_{\mathrm{0}^{\:} } ^{\:\infty} \left\{\frac{\frac{\mathrm{3}}{\mathrm{4}}\:{sin}\left({x}\right)−\frac{\mathrm{1}}{\mathrm{4}}\:{sin}\left(\mathrm{3}{x}\right)}{{x}}\right\}\:{ln}\left({x}\right){dx}…

Question-93953

Question Number 93953 by mhmd last updated on 16/May/20 Answered by Rasheed.Sindhi last updated on 16/May/20 $$\left({x}−\frac{\mathrm{1}}{{x}}\right)^{\mathrm{2}} =\mathrm{5}^{\mathrm{2}} \\ $$$$\:{x}^{\mathrm{2}} +\frac{\mathrm{1}}{{x}^{\mathrm{2}} }−\mathrm{2}=\mathrm{25} \\ $$$$\:{x}^{\mathrm{2}} +\frac{\mathrm{1}}{{x}^{\mathrm{2}}…

nice-integral-prove-that-0-tan-1-2x-tan-1-x-2-1-x-2-dx-pi-2-4-

Question Number 159474 by mnjuly1970 last updated on 17/Nov/21 $$ \\ $$$$\:\:\:\:\:\:{nice}\:\:{integral}. \\ $$$$\:\:{prove}\:\:{that} \\ $$$$\underset{\mathrm{0}} {\int}^{\:\infty} \frac{\:{tan}^{\:−\mathrm{1}} \left(\mathrm{2}{x}\right)+\:{tan}^{\:−\mathrm{1}} \left(\frac{{x}}{\mathrm{2}}\:\right)}{\mathrm{1}+{x}^{\:\mathrm{2}} }{dx}=\frac{\pi^{\:\mathrm{2}} }{\mathrm{4}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\: \\…

Find-lim-x-0-5x-tan-5x-x-3-

Question Number 28341 by Cheyboy last updated on 24/Jan/18 $${Find}\:\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{5}{x}−\mathrm{tan}\:\left(\mathrm{5}{x}\right)}{{x}^{\mathrm{3}} } \\ $$ Commented by Cheyboy last updated on 24/Jan/18 $$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\:\frac{\mathrm{5}−\mathrm{sec}^{\mathrm{2}} \left(\mathrm{5}{x}\right).\mathrm{5}}{\mathrm{3}{x}^{\mathrm{2}} }…

let-f-x-x-and-g-x-x-find-the-domain-of-f-g-x-help-me-sir-

Question Number 93844 by mhmd last updated on 15/May/20 $${let}\:{f}\left({x}\right)=\sqrt{{x}}\:\:{and}\:{g}\left({x}\right)=\sqrt{{x}}\:{find}\:{the}\:{domain}\:{of}\:\left({f}.{g}\right)\left({x}\right)\:? \\ $$$${help}\:{me}\:{sir} \\ $$ Answered by  M±th+et+s last updated on 15/May/20 $$\left({f}.{g}\right)\left({x}\right)={f}\left(\sqrt{{x}}\right)=\sqrt{\sqrt{{x}}}\:{so}\:{domain}\:{and}\:{range}\:{are}\:\left[\mathrm{0},\infty\right) \\ $$$$ \\…

Question-93837

Question Number 93837 by mhmd last updated on 15/May/20 Commented by i jagooll last updated on 15/May/20 $$\mathrm{t}=\mathrm{2}\:\Rightarrow\mathrm{x}=\mathrm{6} \\ $$$$\left.\frac{\mathrm{dy}}{\mathrm{dx}}\:=\:\mathrm{3x}^{\mathrm{2}} −\mathrm{4x}\:\right]_{\mathrm{x}=\:\mathrm{6}} \\ $$$$=\:\mathrm{3}\left(\mathrm{36}\right)−\mathrm{24}\:=\:\mathrm{108}−\mathrm{24} \\ $$$$=\mathrm{84}…