Video: Yuav ua li cas hauv paus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib xaj hauv paus B ntawm qhov chaw vector V yog a hauv paus ntawm V qhov twg muaj qee cov ntaub ntawv ntxiv: uas yog, lub ntsiab lus ntawm B los "thawj", uas los "thib ob", thiab lwm yam. Yog tias V yog qhov kawg-dimensional, ib txoj hauv kev yuav ua rau B ib qho xaj n-tuple, lossis ntau dua, peb tuaj yeem muab tag nrho kev txiav txim ntawm B.
Tsis tas li ntawd, lub hauv paus thiab qhov loj me yog dab tsi?
Yog tias V yog qhov chaw vector ntawm qhov ntev n, ces: Ib subset ntawm V nrog n ntsiab yog a hauv paus yog thiab tsuas yog hais tias nws yog linearly ywj siab. Ib subset ntawm V nrog n cov ntsiab lus yog a hauv paus yog thiab tsuas yog hais tias nws yog spanning teeb V.
Ib yam li ntawd, koj yuav pom lub hauv paus ntawm daim duab li cas? thiab a hauv paus rau cov duab ntawm A yog muab los ntawm a hauv paus rau cov kab ke ntawm koj cov matrix, uas peb tuaj yeem tau txais los ntawm kev noj cov kab ntawm cov matrix sib raug rau cov thawj 1's hauv txhua daim ntawv kab-echelon. Qhov no muab cov hauv paus {(2, 1, 1), (−1, −2, 1)} rau cov duab ntawm A.
Ib yam li ntawd, lub hauv paus ntawm vector qhov chaw yog dab tsi?
A vector space lub hauv paus yog subset ntawm cov duab nyob rau hauv lub qhov chaw uas yog linearly ywj siab thiab span lub qhov chaw . A hauv paus yog linearly ywj siab vim cov cov duab hauv nws tsis tuaj yeem txhais tau tias yog a kab tawm ua ke ntawm ib qho ntawm lwm tus cov duab hauv hauv paus.
Lub hauv paus ntawm matrix yog dab tsi?
Matrices tsis muaj hauv paus . Yog tias kuv yuav tsum twv, qhov koj tab tom tham txog yuav ua li cas, muab ib hauv paus ntawm qhov chaw vector, koj tuaj yeem sau a matrix rau ib tug linear transformation hais txog qhov ntawd hauv paus . Tab sis a matrix tsuas yog ib pawg ntawm cov lej uas tsis muaj lwm lub ntsiab lus ntawm nws tus kheej.
Pom zoo:
Yuav ua li cas yog lub hauv paus ntawm kev faib cov ntsiab lus nyob rau hauv Mendeleev periodic rooj?
Lub hauv paus ntawm kev faib cov ntsiab lus nyob rau hauv Mendeleev lub sij hawm lub sij hawm yog atomic mass. Nyob rau hauv mendleevs lub sij hawm lub sij hawm, cov ntsiab lus tau muab cais nyob rau hauv lub hauv paus ntawm lub nce kev txiav txim ntawm lawv atomic luj
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Yuav ua li cas koj txiav txim siab npaum li cas ntawm cov kua qaub uas yuav tsum tau neutralize lub hauv paus?
Kev daws qhov teeb meem Acid-Base Neutralization Kauj Ruam 1: Muab xam cov moles ntawm OH-. Molarity = moles / ntim. moles = Molarity x Volume. moles OH- = 0.02 M/100 milliliters. Kauj ruam 2: Xam qhov ntim ntawm HCl xav tau. Molarity = moles / ntim. Volume = moles/molarity. Volume = moles H+/0.075 Molarity
Koj puas tuaj yeem muab lub voos xwmfab hauv paus los ntawm lub hauv paus square?
Cov Khoom Muag tau nce mus rau Txoj Cai Fais Fab yog qhov tseem ceeb vim tias koj tuaj yeem siv nws los faib cov lus qhia radical. Nco ntsoov tias cov hauv paus hniav zoo ib yam - koj tuaj yeem muab cov hauv paus plaub hau nrog cov hauv paus plaub hau, lossis cov hauv paus hniav nrog lub voos xwmfab, piv txwv li. Tab sis koj tsis tuaj yeem muab lub hauv paus square thiab lub voos xwmfab hauv paus siv txoj cai no
Yuav ua li cas koj dilate tsis nyob rau hauv lub hauv paus?
Ib qho kev nthuav dav tsis yog nyob rau hauv lub hauv paus chiv keeb, tuaj yeem xav tias yog ib qho kev txhais lus, thiab qhia raws li tus qauv. Txhais lub nruab nrab ntawm lub dilation rau lub hauv paus chiv keeb, siv lub dilation factor raws li qhia nyob rau hauv lub 'center at origin' formula, ces txhais lub center rov qab (undo the translation)