Cov txheej txheem:
Video: Dab tsi yog qhov system ntawm kev sib npaug siv rau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Systems ntawm equations tuaj yeem yog siv thaum sim txiav txim siab seb koj puas yuav tau nyiaj ntau dua ntawm ib txoj haujlwm lossis lwm qhov, suav nrog ntau qhov sib txawv rau hauv tus account, xws li cov nyiaj hli, cov txiaj ntsig thiab cov nyiaj ua haujlwm.
Kuj paub, lub hom phiaj ntawm cov kab ke ntawm kev sib npaug yog dab tsi?
SYSTEMS OF EQUATIONS . A system ntawm equations yog sau los ntawm ob lossis ntau dua kev sib npaug nrog ib tug tib txheej ntawm tsis paub. Hauv kev daws teeb meem a system ntawm equations , peb sim nrhiav qhov tseem ceeb rau txhua qhov tsis paub uas yuav txaus siab rau txhua tus kev sib npaug hauv qhov system.
Tom qab ntawd, lo lus nug yog, dab tsi yog 3 hom kev sib npaug? Muaj peb hom kab sib npaug ntawm cov kab sib npaug hauv ob qhov sib txawv, thiab peb hom kev daws teeb meem.
- Ib qho kev ywj pheej muaj raws nraim ib qho kev daws teeb meem [Math Processing Error].
- Ib qho kev tsis sib haum xeeb tsis muaj kev daws teeb meem.
- Ib tug dependent system muaj ntau infinitely daws.
Ib tug kuj yuav nug, dab tsi yog cov txheej txheem ntawm kev sib npaug siv rau hauv lub ntiaj teb tiag?
Cov txheej txheem ntawm linear kev sib npaug yog siv hauv ntiaj teb tiag los ntawm economists thiab cov neeg ua lag luam kom paub seb thaum twg cov khoom sib npaug xav tau. Nws yog txhua yam hais txog mulah, thiab yog tias koj tsis paub cov lej thaum koj muaj kev lag luam, nws yuav ua tsis tiav.
Kuv yuav daws tau qhov system ntawm kev sib npaug li cas?
Nov yog qhov nws mus:
- Kauj Ruam 1: Daws ib qho kev sib npaug rau ib qho ntawm qhov sib txawv. Cia peb daws thawj qhov sib npaug rau y:
- Kauj Ruam 2: Hloov qhov sib npaug mus rau lwm qhov sib npaug, thiab daws rau x.
- Kauj Ruam 3: Hloov x = 4 x = 4 x = 4 rau hauv ib qho ntawm qhov sib npaug qub, thiab daws rau y.
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
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Qhov sib npaug sib npaug rau qhov nruab nrab ntawm h2so4 los ntawm Koh yog dab tsi?
Hauv daim vis dis aus no peb yuav sib npaug ntawm qhov sib npaug KOH + H2SO4 = K2SO4 + H2O thiab muab cov coefficients raug rau txhua qhov sib xyaw. Txhawm rau sib npaug KOH + H2SO4 = K2SO4 + H2O koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
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