Cov txheej txheem:
Video: Yuav ua li cas koj thiaj paub yog tias ib yam dab tsi yog quadratic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Peb xwb kuaj degree ntawm kev sib npaug. Yog , degree ntawm equation yog sib npaug rau 2 ces tsuas yog nws yog a plaub fab kev sib npaug. Degree ntawm equation yog 2. Yog li ntawd, nws yog a Quadratic Kev sib npaug.
Ib yam li ib tug yuav nug, koj yuav ua li cas paub yog tias daim duab yog plaub npaug?
Yog qhov txawv yog tas li, lub daim duab yog linear. Yog qhov sib txawv tsis tas li tab sis qhov thib ob txheej ntawm qhov sib txawv yog tas li, lub graph yog quadratic . Yog qhov sib txawv ua raws tus qauv zoo ib yam li y-tus nqi, tus daim duab yog exponential.
Tsis tas li ntawd, peb hom quadratic equations yog dab tsi? Txhawm rau tshuaj xyuas, nyob ntawm seb koj npaj nws li cas, a quadratic equation tuaj yeem sau rau hauv peb hom ntawv sib txawv : standard, intercept thiab vertex. Txawm li cas los xij, qhov zoo ntawm tus nqi qhia tau hais tias tus concave-up parabola, thaum tus nqi tsis zoo txhais tau hais tias concave down.
Kuj kom paub, dab tsi ua rau muaj teeb meem quadratic?
Hauv lej, a plaub fab yog hom teeb meem uas cuam tshuam nrog qhov sib txawv ntawm nws tus kheej - kev ua haujlwm hu ua squaring. Cov lus no muab los ntawm thaj tsam ntawm ib lub xwmfab ua nws sab ntev muab nws tus kheej. Lo lus " plaub fab "los ntawm quadratum, lo lus Latin rau square.
Kuv yuav ua li cas thiaj daws tau qhov kev sib npaug plaub npaug?
Yuav kom daws tau ib qho kev sib npaug ntawm plaub fab los ntawm kev tsim,
- Muab tag nrho cov ntsiab lus ntawm ib sab ntawm qhov sib npaug ntawm qhov kos npe, tawm hauv xoom ntawm lwm sab.
- Qhov xwm txheej.
- Teem txhua yam sib npaug rau xoom.
- Kho txhua qhov sib npaug.
- Tshawb xyuas los ntawm kev ntxig koj cov lus teb hauv qhov sib npaug qub.
Pom zoo:
Yuav ua li cas koj thiaj paub tias ib yam dab tsi muaj nuj nqi los yog tsis?
LUS TEB: Cov lus teb piv txwv: Koj tuaj yeem txiav txim siab seb txhua lub ntsiab lus ntawm lub npe yog ua ke nrog ib qho ntawm qhov ntau. Piv txwv li, yog tias muab ib daim duab, koj tuaj yeem siv qhov ntsuas kab ntsug; Yog hais tias ib txoj kab ntsug hla cov duab ntau dua ib zaug, ces qhov kev sib raug zoo uas cov duab sawv cev tsis yog ib qho haujlwm
Yuav ua li cas koj thiaj paub tias ib yam dab tsi yog ib yam khoom dawb huv los yog sib tov?
1. Cov tshuaj dawb huv tsis tuaj yeem muab cais ua lwm yam teeb meem, thaum sib xyaw yog sib xyaw ntawm ob lossis ntau dua cov khoom ntshiab. 2. Cov khoom ntshiab muaj lub cev tsis tu ncua thiab tshuaj lom neeg, thaum cov khoom sib xyaw muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg (piv txwv li, qhov kub thiab txias)
Yuav ua li cas koj thiaj paub yog tias koj lub tsev nyob rau hauv lub dab dej?
Ntawm no yog 7 lub cim qhia ntau tshaj plaws hauv lub dab dej yuav tshwm sim: Ib puag ncig kev nyuaj siab nyob rau hauv lub ntiaj teb: Localized subsidence los yog kev nyuaj siab nyob txhua qhov chaw ntawm lub tsev: Lub pas dej ncig (los yog lub pas dej loj, tob): Lub hauv paus daws teeb meem: Kev tawg ntawm txoj kev lossis pavement : Cia li poob ntawm qhov dej hauv qhov chaw:
Yuav ua li cas koj thiaj paub yog tias ib yam khoom tsoo hauv av?
VIDEO Tsis tas li ntawd, yuav ua li cas thaum ib yam khoom tsoo hauv av? Thaum lub yam khoom tsoo hauv av , lub zog kinetic yuav tsum mus rau qhov chaw, vim hais tias lub zog tsis yog tsim los yog puas, tsuas yog pauv mus. Yog hais tias kev sib tsoo yog elastic, lub ntsiab lus khoom tuaj yeem bounce, ntau lub zog nkag mus rau hauv ua kom nws rov qab los dua.
Yuav ua li cas koj thiaj paub tias ob yam kab mob yog tib hom?
Cov ntsiab lus tseem ceeb. Raws li lub tswv yim hom tsiaj, cov kab mob muaj nyob rau tib hom yog tias lawv tuaj yeem sib cuam tshuam los tsim cov xeeb ntxwv zoo, muaj txiaj ntsig zoo. Cov tsiaj yog sib cais los ntawm ib leeg los ntawm prezygotic thiab postzygotic teeb meem, uas tiv thaiv mating los yog zus tau tej cov, fertile offspring