Question Number 143261 by Mathspace last updated on 12/Jun/21 $${find}\:{Y}_{{n}} =\int_{\mathrm{0}} ^{\infty} \:\:\frac{{dx}}{\left({x}+\mathrm{1}\right)\left({x}+\mathrm{2}\right)….\left({x}+{n}\right)} \\ $$$$\left({n}>\mathrm{1}\:{integr}\right) \\ $$ Answered by Olaf_Thorendsen last updated on 12/Jun/21 $$…
Question Number 143260 by Mathspace last updated on 12/Jun/21 $${find}\:\int\:\frac{{dx}}{\:\sqrt{{x}}+\sqrt{{x}+\mathrm{1}}+\sqrt{{x}+\mathrm{2}}} \\ $$ Commented by MJS_new last updated on 12/Jun/21 $$\mathrm{there}\:\mathrm{exists}\:\mathrm{a}\:\mathrm{solution}\:\mathrm{on}\:\mathrm{this}\:\mathrm{forum},\:\mathrm{I}\:\mathrm{cannot} \\ $$$$\mathrm{find}\:\mathrm{the}\:\mathrm{question}\:\mathrm{number}… \\ $$ Terms…
Question Number 12190 by tawa last updated on 16/Apr/17 $$\mathrm{Show}\:\mathrm{that},\:\:\mathrm{0}.\mathrm{9999999999999}\:……\:\infty\:\:\mathrm{is}\:\mathrm{equal}\:\mathrm{to}\:\mathrm{1} \\ $$ Answered by ridwan balatif last updated on 16/Apr/17 $$\mathrm{let}\:\mathrm{0}.\mathrm{9999999}….=\mathrm{p} \\ $$$$\mathrm{0}.\mathrm{999999}…=\mathrm{p} \\ $$$$−−−−−−−−×\mathrm{10}…
Question Number 12189 by tawa last updated on 16/Apr/17 $$\mathrm{Find}\:\mathrm{the}\:\mathrm{fraction}\:\mathrm{to}\:\mathrm{the}\:\mathrm{below}\:\mathrm{deimal} \\ $$$$\mathrm{4}.\mathrm{4444444444444}…….\:\infty \\ $$ Answered by ridwan balatif last updated on 16/Apr/17 $$\mathrm{let}:\:\mathrm{4}.\mathrm{444444}…=\mathrm{a} \\ $$$$\mathrm{4}.\mathrm{4444}…=\mathrm{a}…
Question Number 143262 by Mathspace last updated on 12/Jun/21 $${developp}\:{at}\:{fourier}\:{serie} \\ $$$${f}\left({x}\right)=\frac{\mathrm{1}}{{cosx}\:+\mathrm{2}{sinx}} \\ $$ Answered by mathmax by abdo last updated on 13/Jun/21 $$\mathrm{f}\left(\mathrm{x}\right)=\frac{\mathrm{1}}{\mathrm{cosx}+\mathrm{2sinx}}\:\Rightarrow\mathrm{f}\left(\mathrm{x}\right)=\frac{\mathrm{1}}{\frac{\mathrm{e}^{\mathrm{ix}} +\mathrm{e}^{−\mathrm{ix}}…
Question Number 77725 by BK last updated on 09/Jan/20 Commented by mr W last updated on 09/Jan/20 $${have}\:{you}\:{got}\:{a}\:{solution}\:{sir}? \\ $$ Commented by abdomathmax last updated…
Question Number 143257 by Mathspace last updated on 12/Jun/21 $${find}\:\int\int_{\left[\mathrm{0},\mathrm{1}\right]} {e}^{−\left({x}^{\mathrm{2}} +{y}^{\mathrm{2}} \right)} {arctan}\left(\mathrm{2}\sqrt{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} }\right){dxdy} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 77722 by jagoll last updated on 09/Jan/20 $${how}\:{to}\:{find}\: \\ $$$${n}−{term}\:{from} \\ $$$${S}_{{n}} ={n}^{\mathrm{2}} +\mathrm{7}{n}+\mathrm{2}\:? \\ $$ Commented by Kunal12588 last updated on 09/Jan/20…
Question Number 143256 by Mathspace last updated on 12/Jun/21 $${calculate}\:\int_{\mathrm{0}} ^{\mathrm{1}} \int_{{x}} ^{\mathrm{2}−{x}} {e}^{−{xy}} \sqrt{{x}+{y}}{dy}\:{dx} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 143259 by Mathspace last updated on 12/Jun/21 $${solve}\:{y}^{''} −{y}^{'} +\mathrm{2}={xsin}\left(\mathrm{3}{x}\right) \\ $$ Answered by qaz last updated on 12/Jun/21 $$\mathrm{y}_{\mathrm{p}} =\frac{\mathrm{1}}{\mathrm{D}^{\mathrm{2}} −\mathrm{D}}\left[\mathrm{xsin}\:\left(\mathrm{3x}\right)−\mathrm{2}\right] \\…