Question Number 109606 by mathdave last updated on 24/Aug/20
Commented by malwan last updated on 24/Aug/20
$${What}\:{do}\:{you}\:{do}\:{sir}\:? \\ $$$${You}\:{post}\:{the}\:{solution}\:{as}\:{question} \\ $$$${and}\:??\:{where}\:{is}\:{the}\:{final}\:{result}?? \\ $$
Commented by mnjuly1970 last updated on 24/Aug/20
$${very}\:{nice}\:{very}\:{nice}\: \\ $$$${thank}\:{you}\:{so}\:{much}\:{master} \\ $$$${peace}\:{upon}\:{you}\: \\ $$$$\:{where}\:{are}\:{you}\:{from}\:\:{master}\: \\ $$$$\:{will}\:{you}\:{do}\:{me}\:{a}\:{favour}? \\ $$$$\:{please}\:{send}\:{me}\:{a}\:{suitable} \\ $$$${and}\:{nice}\:\left({pdf}\right)\:{of}\:{advanced} \\ $$$${calculus}\:{and}\:{integral}\:{if}\:{it}\:{is} \\ $$$${possible}\: \\ $$$${sincerely}\:{yours}\:\:\:{m}.{n}.{july} \\ $$$$\mathrm{1970}\:{math}\:{teacher}.. \\ $$$$ \\ $$$$ \\ $$$$ \\ $$$$ \\ $$
Commented by mathdave last updated on 24/Aug/20
$${alright} \\ $$
Commented by mnjuly1970 last updated on 24/Aug/20
$${grateful}. \\ $$
Commented by mnjuly1970 last updated on 24/Aug/20
Commented by mnjuly1970 last updated on 24/Aug/20
$$\:\:\:{my}\:{gmail} \\ $$$${mehdinazerian}\mathrm{98}@{gmail}.{com} \\ $$
Commented by mathdave last updated on 24/Aug/20
$${check}\:{the}\:{complete}\:{solution}\:{by}\:\:{stroll}\:{downward} \\ $$
Commented by malwan last updated on 24/Aug/20
$${yes}\:{sir} \\ $$$${again} \\ $$$${you}\:{post}\:{the}\:{solution}\:{as}\:{question} \\ $$$${Did}\:{you}\:{understand}\:{what}\:{I}\:{say}¿? \\ $$
Commented by mr W last updated on 24/Aug/20
$${mathdave}\:{sir}: \\ $$$${your}\:{contribution}\:{is}\:{appreciated}\:{very} \\ $$$${much}!\:{but}\:{this}\:{forum}\:{is}\:{a}\:{public} \\ $$$${place}\:{for}\:{all}\:{people}.\:{its}\:{rules}\:{should} \\ $$$${be}\:{respected}\:{by}\:{all}\:{users}.\:{if}\:{you}\:{give} \\ $$$${answer}\:{to}\:{an}\:{existing}\:{question}, \\ $$$${please}\:{post}\:{the}\:{answer}\:{in}\:{the}\:{thread} \\ $$$${where}\:{the}\:{question}\:{is},\:{instead}\:{of} \\ $$$${opening}\:{a}\:{new}\:{thread}\:{without}\: \\ $$$${reference}\:{to}\:{the}\:{old}\:{one}.\:{if}\:{all}\:{people} \\ $$$${do}\:{like}\:{this}\:{the}\:{forum}\:{will}\:{become} \\ $$$${mess}\:{soon}.\:{i}\:{don}'{t}\:{think}\:{this}\:{is} \\ $$$${what}\:{you}\:{want}\:{and}\:{what}\:{mnjuly}\mathrm{1970} \\ $$$${sir}\:{wants}. \\ $$
Commented by Aziztisffola last updated on 24/Aug/20
$$\mathrm{Sir}, \\ $$$$\mathrm{And}\:\mathrm{me}\:\mathrm{could}\:\mathrm{I}\:\mathrm{have}\:\mathrm{this}\:\mathrm{nice}\:\mathrm{pdf}\:\mathrm{of} \\ $$$$\:\mathrm{advanced}\:\mathrm{calculus}\:\mathrm{and}\:\mathrm{itegrals},\:\mathrm{if}\:\mathrm{is}\: \\ $$$$\:\mathrm{it}\:\mathrm{possile}. \\ $$$$\mathrm{my}\:\mathrm{email}\:\mathrm{adress}\:\mathrm{is}: \\ $$$$\:\mathrm{ighrm}@\mathrm{hotmail}.\mathrm{com} \\ $$$$\mathrm{Thank}\:\mathrm{you}\:\mathrm{sir}. \\ $$
Commented by mathdave last updated on 24/Aug/20
$${add}\:{me}\:{up}\:{on}\:{watsapp}\:{with}\:{this}\:{number}\: \\ $$$$\mathrm{09073487193} \\ $$
Commented by kaivan.ahmadi last updated on 24/Aug/20
$${Hi}\:{sir},\:{where}\:{are}\:{you}\:{from}? \\ $$
Commented by 1549442205PVT last updated on 25/Aug/20
$$\mathrm{Sir}\:\mathrm{put}\:\mathrm{y}=−\mathrm{y}\:\mathrm{but}\:\mathrm{don}'\mathrm{t}\:\mathrm{change}\:\mathrm{limits} \\ $$$$\mathrm{of}\:\mathrm{defined}\:\mathrm{integral}\:\mathrm{then}\:\mathrm{lead}\:\mathrm{to}\:\mathrm{serious} \\ $$$$\mathrm{mistake} \\ $$
Commented by mathdave last updated on 25/Aug/20
$${there}\:{is}\:{no}\:{mistake}\:{for}\:{the}\:{solution} \\ $$$${here}\:{it}\:{goes}\:{if}\:{u}\:{diffentiate}\:{that}\:{we}\:{will}\:{hatheve}\:−{dy} \\ $$$${at}\:{y}\Rightarrow\infty,\:\:{y}_{\mathrm{1}} \Rightarrow−\infty\:{and}\:{at}\:\:{y}\Rightarrow−\infty,\:\:{y}_{\mathrm{2}} \Rightarrow\infty \\ $$$${then}\:{we}\:{have}\:{the}\:{integral}\:{limit}\:{has}\:\:\:\int_{+\infty} ^{−\infty} ×−{dy} \\ $$$${the}\:{minus}\:{sign}\:{in}\:{front}\:{of}\:\left(\:{dy}\right)\:{will}\:{interchange} \\ $$$${the}\:{limit}\:{integral}\:{has}\:\int_{−\infty} ^{+\infty} ×{dy}\:\:{that}\:{is}\:{the} \\ $$$${explanation}.{thank}\:{u} \\ $$
Commented by 1549442205PVT last updated on 26/Aug/20
$$\mathrm{Excuse}\:\mathrm{me}.\mathrm{Sir}\:\mathrm{is}\:\mathrm{right}\:\mathrm{Thank}\:\mathrm{you} \\ $$