Question Number 100649 by mathmax by abdo last updated on 28/Jun/20 $$\mathrm{calculate}\:\sum_{\mathrm{n}=\mathrm{0}} ^{\infty} \:\frac{\left(−\mathrm{1}\right)^{\mathrm{n}} }{\mathrm{3n}+\mathrm{1}}\:\mathrm{and}\:\sum_{\mathrm{n}=\mathrm{0}} ^{\infty} \:\frac{\left(−\mathrm{1}\right)^{\mathrm{n}} }{\mathrm{4n}+\mathrm{1}} \\ $$ Terms of Service Privacy Policy…
Question Number 35057 by math khazana by abdo last updated on 14/May/18 $${let}\:{u}_{{n}} =\left(\frac{{n}}{{n}+\mathrm{1}}\right)^{\frac{\mathrm{1}}{{n}}} \:\:−\mathrm{1} \\ $$$${find}\:{the}\:{nature}\:{of}\:\sum_{{n}\geqslant\mathrm{0}} {u}_{{n}} \\ $$ Commented by prof Abdo imad…
Question Number 35052 by math khazana by abdo last updated on 14/May/18 $${let}\:{f}\left({x}\right)\:=\:\:\frac{{x}}{{x}^{\mathrm{2}} \:+{x}−\mathrm{1}} \\ $$$${developp}\:{f}\:{atintegr}\:{serie} \\ $$ Commented by abdo mathsup 649 cc last…
Question Number 35051 by math khazana by abdo last updated on 14/May/18 $${calculate}\:\sum_{{n}=\mathrm{0}} ^{\infty} \:\:\frac{{n}+\mathrm{3}}{\mathrm{2}{n}+\mathrm{1}}{x}^{{n}} \\ $$$$ \\ $$ Commented by math khazana by abdo…
Question Number 35050 by math khazana by abdo last updated on 14/May/18 $${calculate}\:\sum_{{n}=\mathrm{0}} ^{\infty} \:\:\:\frac{\left(−\mathrm{1}\right)^{{n}} \:\:{x}^{\mathrm{2}{n}+\mathrm{1}} }{\mathrm{4}{n}^{\mathrm{2}} −\mathrm{1}} \\ $$ Terms of Service Privacy Policy…
Question Number 35040 by math khazana by abdo last updated on 14/May/18 $${find}\:{the}\:{value}\:{of}\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\:\:\:\frac{{x}^{{n}} }{{n}\left({n}+\mathrm{1}\right)\left(\mathrm{2}{n}−\mathrm{1}\right)} \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{value}\:{of}\:\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\:\:\frac{\left(−\mathrm{1}\right)^{{n}} }{\mathrm{2}^{{n}} {n}\left({n}+\mathrm{1}\right)\left(\mathrm{2}{n}−\mathrm{1}\right)} \\ $$ Terms…
Question Number 35041 by math khazana by abdo last updated on 14/May/18 $${find}\:{the}\:{value}\:{of}\:\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\frac{{n}+\mathrm{1}}{{n}^{\mathrm{3}} \left({n}+\mathrm{1}\right)^{\mathrm{2}} } \\ $$ Commented by math khazana by abdo…
Question Number 35037 by abdo mathsup 649 cc last updated on 14/May/18 $${prove}\:{that}\:\forall\:{n}\in{N} \\ $$$$\sum_{{k}=\mathrm{0}} ^{\mathrm{2}{n}} \:\left(−\mathrm{1}\right)^{{k}} \left(\:{C}_{\mathrm{2}{n}} ^{{k}} \right)^{\mathrm{2}} \:=\left(−\mathrm{1}\right)^{{n}} \:{C}_{\mathrm{2}{n}} ^{{n}} \:\:. \\…
Question Number 34913 by abdo imad last updated on 12/May/18 $${let}\:{f}\left({x}\right)=\:\frac{\mathrm{3}}{\mathrm{2}+{cosx}}\:\:{developp}\:{f}\:{ar}\:{fourier}\:{serie}. \\ $$ Commented by abdo imad last updated on 31/May/18 $${we}\:{have}\:{cosx}\:=\:\frac{{e}^{{ix}} \:+{e}^{−{ix}} }{\mathrm{2}}\:{let}\:{use}\:{the}\:{changement} \\…
Question Number 34865 by a.i msup by abdo last updated on 12/May/18 $${let}\:{f}\left({x}\right)=\:{e}^{−\sqrt{\mathrm{1}+\mathrm{2}{x}}} \\ $$$${developp}\:{f}\:{at}\:{integr}\:{serie}\:. \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com