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Category: Integration

let-x-1-and-1-1-give-the-integral-0-t-x-1-e-t-1-e-t-dt-at-form-of-serie-

Question Number 33353 by caravan msup abdo. last updated on 15/Apr/18 $$\left.{let}\:{x}\in\right]\mathrm{1},+\infty\left[\:{and}\lambda\:\in\left[−\mathrm{1},\mathrm{1}\right]\right. \\ $$$${give}\:{the}\:{integral}\:\int_{\mathrm{0}} ^{\infty} \:\frac{{t}^{{x}−\mathrm{1}} \:{e}^{−{t}} }{\mathrm{1}−\lambda{e}^{−{t}} }\:{dt} \\ $$$${at}\:{form}\:{of}\:{serie}. \\ $$ Commented by…

let-give-S-x-n-0-1-n-x-n-x-gt-0-1-study-the-contnuity-derivsbility-limits-at-0-and-2-we-give-0-e-t-2-dt-pi-2-prove-that-x-gt-0-S-x-1-pi-0-e-

Question Number 33352 by caravan msup abdo. last updated on 15/Apr/18 $${let}\:{give}\:{S}\left({x}\right)=\sum_{{n}\geqslant\mathrm{0}} \:\frac{\left(−\mathrm{1}\right)^{{n}} }{\:\sqrt{{x}+{n}}}\:,{x}>\mathrm{0} \\ $$$$\left.\mathrm{1}\right){study}\:{the}\:{contnuity}\:,{derivsbility},{limits} \\ $$$${at}\:\mathrm{0}^{+} \:{and}\:+\infty \\ $$$$\left.\mathrm{2}\right)\:{we}\:{give}\:\int_{\mathrm{0}} ^{\infty} \:{e}^{−{t}^{\mathrm{2}} } {dt}\:=\frac{\sqrt{\pi}}{\mathrm{2}}\:.{prove}\:{that}…

let-a-and-b-from-R-a-lt-b-f-a-b-C-continje-prove-that-n-N-a-b-k-0-n-1-x-k-f-x-dx-0-f-0-

Question Number 33346 by prof Abdo imad last updated on 14/Apr/18 $${let}\:{a}\:{and}\:{b}\:{from}\:{R}\:/{a}<{b}\:\:{f}\:\:\left[{a},{b}\right]\rightarrow{C}\:{continje} \\ $$$${prove}\:{that}\:\:\forall{n}\:\in{N}\:\:\int_{{a}} ^{{b}} \left(\prod_{{k}=\mathrm{0}} ^{{n}−\mathrm{1}} \left({x}+{k}\right)\right){f}\left({x}\right){dx}=\mathrm{0} \\ $$$$\Rightarrow\:{f}=\mathrm{0} \\ $$ Terms of Service…