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Video: Yuav ua li cas koj pom qhov additive inverse ntawm ib tug matrix?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kom tau additive inverse ntawm muab matrix , peb tsuas yog yuav tsum tau muab faib rau txhua qhov ntawm matrix nrog -1. Thaum twg, peb muab txhua yam ntawm matrix nrog -1, nws yuav muab sib npaug rau -A. Li no, A + (-A) yuav sib npaug rau 0 qhov twg 0 yog ib qho null matrix . Nws txaus siab txhais cov ntsiab lus ntawm additive inverse.
Ib yam li ntawd, koj yuav ua li cas thiaj nrhiav tau qhov kev hloov pauv ntawm 3x3 matrix?
Rau nrhiav tus inverse ntawm 3x3 matrix , ua ntej xam tus tus txiav txim ntawm matrix . Yog tias tus txiav txim yog 0, matrix tsis muaj thim rov qab . Tom ntej no, transpose lub matrix los ntawm kev rov sau thawj kab ua thawj kab, kab nruab nrab raws li kab nruab nrab, thiab kab thib peb raws li kab thib peb.
Ib tug kuj yuav nug, dab tsi yog additive Matrix? Cov khoom ntiag tug ntawm kev ntxiv hais tias thaum xoom ntxiv rau ib tus lej tiag, tus lej tsis hloov. Yog li, tus lej "0" yog hu ua tus tshuaj ntxiv tus kheej rau cov lej tiag. Muaj ib matrix qe ib tshuaj ntxiv tus kheej rau matrices :. Qhov no matrix kuj txhais tau tias [0].
Hais txog qhov no, ua li cas koj pom qhov sib txawv ntawm qhov sib txawv ntawm lub matrix?
Xaus
- Lub inverse ntawm A yog A-1 tsuas yog thaum A × A-1 = A-1 × A = kuv.
- Txhawm rau nrhiav qhov hloov pauv ntawm 2x2 matrix: sib pauv txoj haujlwm ntawm a thiab d, muab qhov tsis zoo rau pem hauv ntej ntawm b thiab c, thiab faib txhua yam los ntawm tus txiav txim (ad-bc).
- Qee lub sij hawm tsis muaj inverse kiag li.
Yuav ua li cas koj nrhiav tau tus additive inverse ntawm ib tug integer?
Rau tus lej tiag, nws thim rov qab nws cov cim: qhov rov qab mus rau tus lej zoo yog qhov tsis zoo, thiab qhov rov qab mus rau tus lej tsis zoo yog qhov zoo. Zero yog tus additive inverse ntawm nws tus kheej. Cov additive inverse ntawm a yog denoted los ntawm unary minus: −a (saib kev sib tham hauv qab no).
Pom zoo:
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