Video: Cov kws saib mob siv cov kab zauv sib npaug li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov chaw kho mob, suav nrog cov kws kho mob thiab cov neeg saib mob , feem ntau siv linear equations suav cov koob tshuaj kho mob. Linear equations kuj tseem siv los txiav txim seb cov tshuaj sib txawv yuav cuam tshuam li cas rau ib leeg thiab yuav txiav txim siab npaum li cas kom raug los tiv thaiv overdose nrog cov neeg mob siv ntau yam tshuaj.
Hauv no, lej siv li cas hauv kev laus?
Cov neeg saib mob muab cov tshuaj noj thiab txhua qhov ntau npaum li cas raug kho rau tus neeg mob. lej cov qauv yog siv los txiav txim siab npaum li cas los ntawm IV drip, txhaj tshuaj lossis lwm txoj hauv kev. Cov kws saib mob siv lej kom paub tseeb tias tus nqi ntawm cov tshuaj tsim nyog thiab cov neeg mob tsis tau txais tsawg lossis ntau dhau.
Tsis tas li, cov kws saib xyuas neeg mob siv polynomials li cas? Cov kws saib mob siv polynomial ua haujlwm los sau cov ntaub ntawv tus neeg mob. Nws yog ib daim ntawv ntawm kev npaj cov ntaub ntawv nyob rau hauv ib txoj kev tshaj lij thiaj li tsis muaj yuam kev yuav tshwm sim. Ib qho kev qhia algebraic uas muaj ib lossis ntau cov ntsiab lus summed, txhua lub sij hawm uas muaj ib tug tas mus li multiplier thiab ib los yog ntau qhov sib txawv tau tsa rau ib lub hwj chim.
Ib sab saum toj, dab tsi yog cov qauv rau cov kab zauv sib npaug?
Kev daws ib linear equation feem ntau txhais tau tias nrhiav tus nqi ntawm y rau tus nqi ntawm x. Yog tias kev sib npaug yog twb nyob rau hauv daim ntawv y = mx + b, nrog x thiab y sib txawv thiab m thiab b rational zauv, ces tus kev sib npaug tuaj yeem daws tau hauv cov ntsiab lus algebraic. 2 x yog ib qho kev qhia nrog ib lub sij hawm.
Kuv puas tuaj yeem ua tus nais maum yog tias kuv tsis zoo ntawm lej?
Yog koj xav tau qhov no phem txaus, koj ua tau nws. Keeb Kwm teb: Ua tau Kuv ua ib tus nais maum txawm koj kuv ua tsis tau lej ? Yog, koj ua tau tseem be a tus nais maum . Uas tau hais tias, ntau lub tsev kawm ntawv laus muab lawv cov tub ntxhais kawm ntawv xeem txog kev suav tshuaj siv tshuaj los xyuas kom meej tias lawv ua tau suav cov koob tshuaj thaum muaj hluav taws xob poob lossis lwm yam kev puas tsuaj.
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
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
Cov kws saib mob siv lej dab tsi?
Cov kws saib xyuas mob niaj hnub siv qhov sib ntxiv, feem, qhov sib piv thiab qhov sib npaug ntawm algebraic txhua hnub ua haujlwm kom xa cov tshuaj zoo rau lawv cov neeg mob lossis saib xyuas kev hloov pauv hauv lawv txoj kev noj qab haus huv. Cov tsev kawm ntawv laus feem ntau sim cov tub ntxhais kawm tshiab ntawm lawv txoj kev ua lej, yuav tsum muaj kev kho mob hauv lej kho mob yog tias tsim nyog
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