Cov txheej txheem:
- Ua raws li cov kauj ruam los daws qhov teeb meem
- Ntawm no, nyob rau hauv cov kauj ruam hom, yog yuav ua li cas los daws qhov system nrog peb qhov sib npaug thiab peb qhov sib txawv:
Video: Yuav ua li cas koj ua system ntawm equations lo lus teeb meem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
daws a system ntawm equation lo lus teeb meem , peb ua ntej txhais cov variables thiab ces rho tawm cov kev sib npaug los ntawm lus teeb meem . Peb thiaj li daws tau qhov qhov system siv cov duab kos, tshem tawm, lossis hloov txoj kev.
Raws li, koj yuav daws cov teeb meem linear equations lo lus li cas?
Cov kauj ruam koom nrog daws ib linear equation lo lus teeb meem : Qhia qhov tsis paub los ntawm qhov sib txawv li x, y, ……. Txhais cov teeb meem mus rau cov lus ntawm kev ua lej lossis cov nqe lus lej. Tsim cov linear equation nyob rau hauv ib variable siv cov xwm txheej tau muab rau hauv teeb meem . daws tus kev sib npaug rau qhov tsis paub.
Koj sau cov kab ke sib npaug hauv Word li cas? Txhawm rau sau koj tus kheej qhov sib npaug, ua ib qho hauv qab no:
- Ntawm Insert tab, hauv pawg Symbols, nyem lub xub nyob ib sab ntawm Equations, thiab tom qab ntawd nyem Insert New Equation,
- ntawm Insert tab, nyob rau hauv pawg Symbols, nias lub Equation khawm,
- lossis tsuas yog nias Alt + =.
Qhov thib ob, koj yuav daws qhov system ntawm kev sib npaug li cas?
Ua raws li cov kauj ruam los daws qhov teeb meem
- Kauj Ruam 1: Muab tag nrho thawj qhov sib npaug los ntawm 2.
- Kauj Ruam 2: Rov sau cov txheej txheem ntawm kev sib npaug, hloov thawj qhov sib npaug nrog cov kab zauv tshiab.
- Kauj ruam 3: Ntxiv qhov sib npaug.
- Kauj ruam 4: daws rau x.
- Kauj Ruam 5: Nrhiav y-tus nqi los ntawm kev hloov hauv 3 rau x hauv qhov sib npaug.
Koj ua li cas daws cov kab ke ntawm kev sib npaug hauv peb qhov sib txawv?
Ntawm no, nyob rau hauv cov kauj ruam hom, yog yuav ua li cas los daws qhov system nrog peb qhov sib npaug thiab peb qhov sib txawv:
- Xaiv ib qho ob khub ntawm qhov sib npaug ntawm qhov system.
- Tshem tawm tib qhov sib txawv los ntawm txhua tus khub siv txoj kev Ntxiv / rho tawm.
- Kev daws qhov system ntawm ob qhov sib npaug tshiab uas siv txoj kev Ntxiv/Subtraction.
Pom zoo:
Koj yuav daws tau qhov system ntawm linear equations graphically li cas?
Txhawm rau daws qhov system ntawm kab zauv sib npaug graphically peb teeb tsa ob qho tib si sib npaug hauv tib qhov kev sib koom ua ke. Kev daws rau qhov system yuav nyob rau hauv qhov chaw uas ob kab sib tshuam. Ob kab sib tshuam hauv (-3, -4) uas yog kev daws rau qhov kev sib npaug no
Koj yuav daws tau qhov teeb meem linear programming li cas los ntawm txoj kev ntawm cov ces kaum?
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Yuav ua li cas tshwm sim rau qhov teeb meem uas ploj ntawm txhua theem ntawm cov khoom noj khoom haus?
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Koj yuav daws tau qhov system ntawm linear equations algebraically li cas?
Siv kev tshem tawm los daws cov kev daws teeb meem hauv ob qhov sib npaug: x + 3y = 4 thiab 2x + 5y = 5. x = −5, y = 3. Muab txhua lo lus hauv thawj kab zauv los ntawm –2 (koj tau txais –2x – 6y = –8) thiab tom qab ntawd ntxiv cov ntsiab lus hauv ob qhov sib npaug ua ke. Tam sim no daws -y = -3 rau y, thiab koj tau y = 3
Yuav ua li cas koj yuav soj ntsuam cov nyhuv ntawm lub teeb siv ntawm tus nqi ntawm photosynthesis?
Cov nyhuv ntawm lub teeb siv ntawm photosynthesis tuaj yeem tshawb xyuas hauv cov nroj tsuag dej. Qhov kev siv lub teeb yog proportional rau qhov kev ncua deb - nws yuav txo qis raws li qhov deb ntawm lub teeb nce - yog li lub teeb siv rau kev tshawb nrhiav tuaj yeem sib txawv los ntawm kev hloov qhov kev ncua deb ntawm lub teeb mus rau cov nroj tsuag