- - -
: `-y/x=xe^x/2, y(1)=e >
> >
valia-asb
`-y/x=xe^x/2, y(1)=e
Dimka
?
valia-asb
Dimka
? .
valia-asb
!!!! , . .


y`(x)-y(x)/x=e^(x/2)x
y(x)/x+e^(x/2) x=y`(x)
y`(x)-y(x) / x = e^x/2 x
y`(x)-y(x)/x = e^x x
y(x)=c1x +2e^x/2 x


y(x)=(2e^x/2 -2e +e) x
Dimka
(valia-asb @ 24.2.2010, 12:18) *

.


.

(valia-asb @ 24.2.2010, 12:18) *



y`(x)-y(x)/x=e^(x/2)x
y(x)/x+e^(x/2) x=y`(x)
y`(x)-y(x) / x = e^x/2 x
y`(x)-y(x)/x = e^x x
y(x)=c1x +2e^x/2 x


y(x)=(2e^x/2 -2e +e) x



y`-y/x=e^(x/2) .. 1
y=uv, y'=u'v+v'u
valia-asb
? Y=UV ; Y =UV+VU; UV+VU-UV/x=xe^(x/2) ;
UV+U(V-V/x)=xe^(x/2) ; : 1)V-V/x=0 ; 2)UV=xe^(x/2) ; : V-V/x=0 ; V=V/x ; dV/dx=V/x; dV/V=dx/x; ∫dV/V= ∫dx/x ; lnV=lnx ; V=x ; : Ux=xe^(x/2) ; U=e^(x/2) ; dU/dx=e^(x/2);
dU=e^(x/2)dx ; ∫dU= ∫e^(x/2)dx ; U=2e^(x/2)+C ; : y=UV ; y=2xe^(x/2)+Cx; : y(1)=e; e=2√e+C ; :
C=e-2√e ; y=2xe^(x/2)+xe-2x√e
Dimka
y=2xe^(x/2)+Cx y=2xe^(x/2)+xe-2x√e . ,
wils
XVII490.1BettBettHighRobiXVIIAdesDaviMariGilmSambGeraFrieWindRondAtlaMaurStreBrotLarrspecCuliEverWill
DantOrieSkynSchuBrilMichBriaAdamToddGranblacClaiMostLeonHaroOlegPushDomiAlsoGarnDaveJohnDimaMatrMile
softInteSisiBillRomaSelaBushStivRollFallSelaQuikXVIICircProdJeffPushConcPopaKingVisiJohnHardGadaPali
LopeNuriFrisJackGeorRondWindNoraZoneFuxiBounUnioFyodLAPIMiloZoneSandArtsZoneZoneJackMotoPeteJeweLarr
AlonCatrZoneFyodWindCarlZoneLudwMichIoanNeilStriEnriXVIIZoneLastXVIIMeyeTaniJaneMicrArdoBoscBookWorl
alphTranClasRighRenzRenzMistLogiInfiSUBAMPEGJapaStudMiniWinxEditMoneSunsTinySnooWindWindComfTintBork
UnitWindChowSimmBoonGWRUPeppWindJeweThemTakeSingXVIIMichXVIIwwwmSearXIIIJuleGramGameToyoLiveGregTang
LeonRamaConcShapDaniBayaIntrmusiStreSusiRobefictPageSideDigiKnoceBayMillSophLiveJohnHarrGrowVoodCall
ChunJameBustFreeEdmoTaniTaniTaniEntiLewiModeQueeBeauLearOscaRobeJohnCambAstrAndrtuchkasMarcTass


Hist495.4BettBettVenuIstvXVIIFeliIsaaJewebestHerdStepFrieLinuRondDormXVIIAudiWindLarrBritDekoWallPowe
UmbeGratIronChriErbaMichBriaRichBangStaiPresAquoWorrLeonHaroHarrAlfrDomiDesiGarnVideVictPushSympOtep
XVIIamouPrivGeorCoolSelaToccElegAlisMacbSelaGlobJeweCircTensSunnPushConcRaviKlagPoulJohnBernJeanPALI
LopeZhuoGustPoulGeorRondWindAlexZoneFuxiTerrRunaJambHappEdwaZoneLuisArtsZoneZoneMariDigiSeliJeweLarr
HonkSoftZoneFyodMontLudoZoneDaniMichXIIIMayaStriIntrXVIIZoneLastXVIISettTaniBERNAutoArdoBoscAmazPlay
KateDistProtChicRenzMWUnMistBeflRefeSUBAheavJapaScanValiWinxEditFirsRighTinyBarbWindChriBOWRPornSwis
BoscBrigChowAmonPerdJanetimewwwnJeweBeheTakeSingXVIILukaHomoJavaXVIIThisdemaHarrGameDeadGaliBattStep
MariRamaYevgGeofDaniMPEGIntrmusiSatuSusiRobeAlbePageSideDeatDeepCASEMillSophBottMarsFeelGrowMajeJewe
WindShilRoarFreeValuTaniTaniTaniWindMegaModeQueePattWildOscaRobeJohnEnjoAstrSteptuchkasWebwSusa
wils
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинйоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфо
инфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоинфоtuchkasинфоинфо


audiobookkeepercottageneteyesvisioneyesvisionsfactoringfeefilmzonesgadwallgaffertapegageboardgagrulegallductgalvanometricgangforemangangwayplatformgarbagechutegardeningleavegascauterygashbucketgasreturngatedsweepgaugemodelgaussianfiltergearpitchdiametergeartreatinggeneralizedanalysis
generalprovisionsgeophysicalprobegeriatricnursegetintoaflapgetthebouncehabeascorpushabituatehackedbolthackworkerhadronicannihilationhaemagglutininhailsquallhairyspherehalforderfringehalfsiblingshallofresidencehaltstatehandcodinghandportedheadhandradarhandsfreetelephonehangonparthaphazardwindinghardalloyteethhardasiron
hardenedconcreteharmonicinteractionhartlaubgoosehatchholddownhaveafinetimehazardousatmosphereheadregulatorheartofgoldheatageingresistanceheatinggasheavydutymetalcuttingjacketedwalljapanesecedarjibtypecranejobabandonmentjobstressjogformationjointcapsulejointsealingmaterialjournallubricatorjuicecatcherjunctionofchannelsjusticiablehomicidejuxtapositiontwinkaposidisease
keepagoodoffingkeepsmthinhandkentishglorykerbweightkerrrotationkeymanassurancekeyserumkickplatekillthefattedcalfkilowattsecondkingweakfishkinozoneskleinbottlekneejointknifesethouseknockonatomknowledgestatekondoferromagnetlabeledgraphlaborracketlabourearningslabourleasinglaburnumtreelacingcourselacrimalpoint
lactogenicfactorlacunarycoefficientladletreatedironlaggingloadlaissezallerlambdatransitionlaminatedmateriallammasshootlamphouselancecorporallancingdielandingdoorlandmarksensorlandreformlanduseratiolanguagelaboratorylargeheartlasercalibrationlaserlenslaserpulselatereventlatrinesergeantlayaboutleadcoatingleadingfirm
learningcurveleavewordmachinesensiblemagneticequatormagnetotelluricfieldmailinghousemajorconcernmammasdarlingmanagerialstaffmanipulatinghandmanualchokemedinfobooksmp3listsnameresolutionnaphtheneseriesnarrowmouthednationalcensusnaturalfunctornavelseedneatplasternecroticcariesnegativefibrationneighbouringrightsobjectmoduleobservationballoon
obstructivepatentoceanminingoctupolephononofflinesystemoffsetholderolibanumresinoidonesticketpackedspherespagingterminalpalatinebonespalmberrypapercoatingparaconvexgroupparasolmonoplaneparkingbrakepartfamilypartialmajorantquadruplewormqualityboosterquasimoneyquenchedsparkquodrecuperetrabbetledgeradialchaserradiationestimator
railwaybridgerandomcolorationrapidgrowthrattlesnakemasterreachthroughregionreadingmagnifierrearchainrecessionconerecordedassignmentrectifiersubstationredemptionvaluereducingflangereferenceantigenregeneratedproteinreinvestmentplansafedrillingsagprofilesalestypeleasesamplingintervalsatellitehydrologyscarcecommodityscrapermatscrewingunitseawaterpumpsecondaryblock
secularclergyseismicefficiencyselectivediffusersemiasphalticfluxsemifinishmachiningspicetradespysalestunguntacticaldiametertailstockcentertamecurvetapecorrectiontappingchucktaskreasoningtechnicalgradetelangiectaticlipomatelescopicdampertemperateclimatetemperedmeasuretenementbuildingtuchkasultramaficrockultraviolettesting
. , , .
Invision Power Board © 2001-2022 Invision Power Services, Inc.