Video: Puas yog parallel kab nyob ntawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib qhov system kab sib npaug tuaj yeem ua tsis sib xws lossis sib xws nyob . Yog tias kab nyob rau hauv lub system muaj tib txoj kab nqes tab sis txawv intercepts ces lawv tsuas yog inconsistent. Txawm hais tias lawv muaj tib txoj kab nqes thiab cuam tshuam (hauv lwm lo lus, lawv yog tib txoj kab) ces lawv zoo ib yam nyob.
Tsis tas li ntawd, cov kab sib dhos puas tsis sib haum?
Yog tias kab yog parallel , lawv yuav tsis sib tshuam. Qhov ntawd txhais tau hais tias txoj kev sib npaug lawv sawv cev tsis muaj kev daws teeb meem. Ib qho system uas tsis muaj kev daws teeb meem yog hu ua ib qho tsis sib xws qhov system.
Tom qab ntawd, lo lus nug yog, ua li cas koj thiaj paub tias daim duab yog ywj siab los yog nyob ntawm? Yog tias ib qho kev sib raug zoo muaj ib qho kev daws teeb meem, nws yog ywj siab.
- Yog hais tias ib tug zoo xws li system muaj ib tug infinite cov kev daws teeb meem, nws yog nyob ntawm seb. Thaum koj kos cov kab zauv, ob qho tib si sib npaug sawv cev tib kab.
- Yog tias qhov system tsis muaj kev daws teeb meem, nws tau hais tias tsis sib haum.
Kuj paub yog, thaum cov kab sib npaug lawv yog?
Parallel kab yog coplanar kab (hauv tib lub dav hlau) uas tsis sib tshuam (tsis txhob hla ib leeg). Kab uas yog thaum uas tig mus muaj tib lub steepness (los yog tib lub kaum sab xis ntawm kab rov tav). Txij li thaum kab sib npaug muaj tib lub steepness, lawv muaj tib txoj kab nqes.
Lub ntsiab lus ntawm dependent linear equation yog dab tsi?
Ib qhov system kev sib npaug yog ob lossis ntau dua kev sib npaug uas daws ib txhij, thaum a nyob system ntawm linear equations yog kev sib npaug uas tsim ib txoj kab ncaj nraim ntawm ib daim duab. A nyob system ntawm linear equations muaj cov kev daws teeb meem tsis kawg.
Pom zoo:
Dab tsi yog qhov txawv ntawm kab rau kab voltage thiab kab rau nruab nrab voltage?
Qhov voltage ntawm ob kab (piv txwv li 'L1' thiab 'L2') yog hu ua kab rau kab (los yog theem rau theem) voltage. Qhov voltage hla txhua qhov winding (piv txwv li ntawm 'L1' thiab 'N' yog hu ua kab rau nruab nrab (lossis theem voltage)
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab uas muab ib tug point thiab ib tug parallel kab?
Qhov sib npaug ntawm kab hauv daim ntawv nqes hav-intercept yog y = 2x + 5. Qhov nqes hav ntawm parallelline yog tib yam: m = 2. Yog li, qhov sib npaug ntawm kab sib npaug yog y = 2x + a. Txhawm rau nrhiav ib qho, peb siv qhov tseeb tias kab yuav tsum dhau los ntawm qhov muab: 5 = (2) ⋅ (− 3) + a
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Puas yog parallel kab skew kab?
Hauv peb-dimensional geometry, skew kab yog ob kab uas tsis sib tshuam thiab tsis sib npaug. Ob kab uas ob leeg pw hauv tib lub dav hlau yuav tsum hla ib leeg los yog sib npaug, yog li skew kab tuaj yeem muaj nyob hauv peb lossis ntau qhov ntev. Ob kab yog skew yog thiab tsuas yog tias lawv tsis yog coplanar
Yuav ua li cas koj nrhiav tau txoj kab nqes ntawm ib tug parallel thiab perpendicular kab?
Txhawm rau nrhiav txoj kab nqes ntawm txoj kab no peb yuav tsum tau txais txoj kab rau hauv txoj kab nqes-intercept daim ntawv (y = mx + b), uas txhais tau tias peb yuav tsum tau daws rau y: Qhov nqes hav ntawm kab 4x - 5y = 12 yog m = 4 / 5. Yog li ntawd, txoj kab nqes ntawm txhua kab uas tig mus rau kab no yuav tsum yog m = 4/5. Ob kab yog perpendicular yog tias