Video: Yuav ua li cas koj nrhiav tau daim ntawv tivthaiv ntawm ob lub ntsiab lus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muab ob point vectors nrog ib tug sawv cev rau thawj taw tes thiab lwm tus sawv cev rau lub davhlau ya nyob twg taw tes . Cov daim ntawv tivthaiv ntawm vector tsim los ntawm cov ob point vectors yog muab los ntawm cov cov khoom ntawm lub davhlau ya nyob twg taw tes rho tawm qhov sib xws cov khoom ntawm qhov pib taw tes.
Tom qab ntawd, daim ntawv tivthaiv yog dab tsi?
Cov daim ntawv tivthaiv ntawm ib vector yog tus khub xaj uas piav qhia txog kev hloov pauv hauv x- thiab y-tus nqi. Hauv daim duab saum toj no x1= 0, y1= 0 thiab x2= 2, y2=5. Cov khub xaj uas piav qhia txog kev hloov pauv yog (x2- x1, tus y2-y1), hauv peb qhov piv txwv (2-0, 5-0) lossis (2, 5).
vectors sau li cas? A vector muaj qhov loj thiab kev taw qhia, thiab feem ntau sau nyob rau hauv bold, yog li peb paub nws tsis yog ib tug scalar: yog li c yog a vector , nws muaj qhov loj thiab kev taw qhia. tab sis c tsuas yog tus nqi, zoo li 3 lossis 12.4.
Hais txog qhov no, koj txhais li cas los ntawm cov khoom?
npe. Lub ntsiab txhais ntawm tiv thaiv txhais tau tias ib feem ntawm tag nrho cov khoom. Ib qho piv txwv ntawm a tiv thaiv yog CD player hauv lub tso suab. Ib qho piv txwv ntawm a tiv thaiv yog ib qho khoom xyaw hauv ib daim ntawv qhia.
Dab tsi yog vector hauv geometry?
Kev txhais ntawm a vector . A vector yog ib yam khoom uas muaj ob qhov loj thiab qhov taw qhia. Geometrically, peb tuaj yeem ua duab a vector raws li ib txoj kab ncaj qha ntu, nws qhov ntev yog qhov loj ntawm qhov vector thiab nrog ib tug xub qhia cov kev taw qhia. Ob qho piv txwv ntawm cov duab yog cov uas sawv cev rau lub zog thiab nrawm.
Pom zoo:
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