Video: Puas yog cov kab sib npaug sib ntsib hauv infinity?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv qhov projective geometry, ib khub ntawm kab ib txwm cuam tshuam ntawm qee qhov chaw, tab sis parallel kab ua tsis yog sib tshuam nyob rau hauv lub dav hlau tiag. Cov kab ntawm tsis kawg yog ntxiv rau lub dav hlau tiag. Qhov no ua tiav lub dav hlau, vim tam sim no parallel kab sib tshuam ntawm qhov point uas yog nyob rau ntawm kab ntawm tsis kawg.
Tsis tas li ntawd, cov kab sib txuas puas sib ntsib?
Parallel kab ua tsis yog ntsib Ntawm qhov taw tes. Cov ntu ntawm Wikipedia muaj nqis heev ntawm no: Hauv geometry, kab sib npaug yog kab hauv ib lub dav hlau uas ua tsis yog ntsib ; uas yog , ob kab hauv ib lub dav hlau uas ua tsis sib tshuam los yog kov ib leeg ntawm ib qho twg yog hais tias yuav thaum uas tig mus.
Ib yam li ntawd, cov kab nkhaus puas tuaj yeem sib npaug? Raws li rau kab sib npaug , ib normal kab rau a nkhaus kuj yog ib txwm rau nws cov parallels. Thaum twg thaum uas tig mus curves yog tsim lawv yuav muaj cusps thaum nyob deb ntawm qhov nkhaus phim lub vojvoog ntawm curvature.
Ib tug kuj nug, ua 2 kab sib txuas sib txuas?
Hauv qhov projective geometry, ib khub ntawm kab ib txwm kev sib tshuam ntawm qee qhov taw tes, tab sis parallel kab ua tsis yog sib tshuam nyob rau hauv lub dav hlau tiag. Cov kab ntawm infinity yog ntxiv rau lub dav hlau tiag. Qhov no ua tiav lub dav hlau, vim tam sim no parallel kab sib tshuam nyob rau hauv ib qho chaw uas lies ntawm lub kab ntawm infinity.
Puas yog cov kab sib txuas sib tshuam ntawm cov ces kaum sab xis?
Parallel kab yog kab nyob rau hauv ib lub dav hlau uas ib txwm sib nrug deb. Parallel kab yeej tsis sib tshuam . Perpendicular kab yog kab uas sib tshuam ntawm a txoj cai (90 degree) lub kaum sab xis.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Cov coefficients hauv kev sib npaug tshuaj sib npaug qhia koj li cas txog cov reactants thiab cov khoom?
Cov coefficients ntawm kev sib npaug chemicalequation qhia peb cov txheeb ze ntawm moles ntawm reactants thiab cov khoom. Hauv kev daws teeb meem stoichiometric, kev hloov pauv ntawm moles ntawm reactants rau moles ntawm cov khoom raug siv. Hauv kev suav loj, cov molar loj yog xav tau los hloov cov huab hwm coj mus rau moles
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no