Video: Muaj pes tsawg txoj kev daws teeb meem muaj qhov system?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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Ua raws li qhov no hauv kev txiav txim siab, pes tsawg txoj kev daws teeb meem puas muaj qhov sib npaug?
Ib qho kev sib npaug ntawm cov kab sib npaug feem ntau muaj ib qho kev daws teeb meem, tab sis qee zaum nws tuaj yeem tsis muaj kev daws teeb meem (cov kab sib txuas) lossis cov kev daws teeb meem tsis kawg (tib kab). Kab lus no tshuaj xyuas tag nrho peb qhov xwm txheej. Ib qho kev daws teeb meem . Lub system ntawm linear equations muaj ib xal thaum cov duab sib tshuam ntawm ib qho chaw.
Ib yam li ntawd, nws txhais li cas rau ib qho kev sib npaug kom muaj ib qho kev daws teeb meem tsis kawg? Yog ib qhov system muaj infinitely ntau txoj kev daws teeb meem , ces cov kab sib tshooj ntawm txhua qhov chaw. Hauv lwm lo lus, lawv yog tib txoj kab ncaj nraim! Qhov no txhais tau tias tias ib qho point ntawm kab yog a daws mus rau qhov system . Yog li ntawd, lub system ntawm equations saum no muaj infinitely ntau txoj kev daws teeb meem.
Tsis tas li ntawd, koj yuav nrhiav tau qhov kev daws teeb meem ntawm qhov system li cas?
Cov daws ntawm zoo li ib qhov system yog tus txiav txim khub uas yog a daws rau ob qhov sib npaug. daws a qhov system ntawm linear equations graphically peb teeb tsa ob qho tib si sib npaug hauv tib qho kev ua haujlwm qhov system . Cov daws mus rau qhov system yuav nyob rau hauv lub point uas ob kab sib tshuam.
Dab tsi yog qhov kev daws teeb meem rau cov kab sib txuas?
Parallel Kab : Yog tias ob txoj kab sib npaug muaj tib txoj kab nqes (thiab sib txawv y-intercepts), kab yuav yog thaum uas tig mus . Txij li thaum kab sib npaug yeej tsis sib tshuam, ib qho system muaj ob kab sib npaug yuav muaj NO daws (tsis muaj kev sib tshuam ntawm lub kab .)
Pom zoo:
Muaj pes tsawg txoj kev daws teeb meem tib kab muaj?
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
Koj yuav daws tau qhov teeb meem linear programming li cas los ntawm txoj kev ntawm cov ces kaum?
METHOD OF CONNERS Khiav cov teeb tsa ua tau (tej thaj tsam), S. Nrhiav qhov EXACT coordinates ntawm tag nrho cov vertices (kaum cov ntsiab lus) ntawm S. Ntsuas lub hom phiaj muaj nuj nqi, P, ntawm txhua vertex Qhov siab tshaj plaws (yog tias muaj) yog qhov loj tshaj ntawm tus nqi ntawm P ntawm vertex. Qhov tsawg kawg nkaus yog qhov tsawg tshaj plaws tus nqi ntawm P ntawm vertex
Muaj pes tsawg txoj kev daws teeb meem yog linear equation?
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
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 kev faib tawm ntawm cov teeb meem raws li muaj pes tsawg leeg?
Cov teeb meem tuaj yeem muab faib ua ob pawg dav: cov tshuaj ntshiab thiab cov khoom sib tov. Cov khoom ntshiab yog ib daim ntawv ntawm cov teeb meem uas muaj qhov sib xyaw ua ke thiab cov khoom uas tsis tu ncua thoob plaws hauv cov qauv. Kev sib xyaw ua ke yog kev sib xyaw ua ke ntawm ob lossis ntau lub ntsiab lus thiab / lossis cov khoom sib txuas