Video: Koj yuav daws cov kab lus li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau daws cov kab zauv sib npaug peb yuav ua kom hnyav siv qhov tseeb hauv qab no. Yog tias a = b ces a + c = b + c a + c = b + c rau ib qho c.
Txheej txheem los daws cov kab sib npaug
- Yog tias kev sib npaug muaj cov feem ntau siv qhov tsawg tshaj plaws denominator kom tshem tawm cov feem.
- Simplify ob sab ntawm lub kev sib npaug .
Kuj paub, dab tsi yog cov qauv rau cov kab zauv sib npaug?
Kev daws ib linear equation feem ntau txhais tau tias nrhiav tus nqi ntawm y rau tus nqi ntawm x. Yog tias kev sib npaug twb nyob rau hauv daim ntawv y = mx + b, nrog x thiab y sib txawv thiab m thiab b rational zauv, ces tus kev sib npaug tuaj yeem daws tau hauv cov ntsiab lus algebraic. 2 x yog ib qho kev qhia nrog ib lub sij hawm.
Tsis tas li ntawd, dab tsi yog qhov tsis yog kab zauv sib npaug? Tsis yog - Linear Equations Nws tsim ib txoj kab ncaj nraim los yog sawv cev rau kev sib npaug rau txoj kab ncaj nraim. Nws tsis tsim ib txoj kab ncaj nraim, tab sis tsim ib qho nkhaus. Nws tsuas muaj ib degree xwb. Los yog peb tuaj yeem txhais nws ua ib qho kev sib npaug muaj qhov kev txiav txim siab tshaj plaws ntawm 1. A nonlinear equation muaj qhov degree li 2 lossis ntau dua 2, tab sis tsis tsawg dua 2.
Ib sab saum toj no, kev sib raug zoo linear yog dab tsi?
A kev sib raug zoo ntawm ncaj proportionality uas, thaum plotted ntawm ib daim duab, traces ib txoj kab ncaj nraim. Hauv linear kev sib raug zoo , txhua qhov kev hloov pauv hauv ib qho kev hloov pauv ywj pheej yuav ua rau muaj kev hloov pauv hauv qhov sib txawv ntawm qhov sib txawv.
Dab tsi yog linear algebraic qhia?
Linear qhia yog ib algebraic qhia qhov twg lub zog ntawm qhov sib txawv yog sib npaug rau 1. Los yog peb tuaj yeem hais tias: Polynomial muaj lub zog ntawm qhov sib txawv raws li 1, hu ua Linear nthuav qhia . e.g. 2x, 3p + 8, 9s - 2z, 3d + 2c + 10e tag nrho yog cov piv txwv ntawm vim: 2x muaj qhov sib txawv x thiab nws lub zog yog 1.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Yuav ua li cas koj daws cov kab zauv sib npaug los ntawm graphical method?
Ib qho kev daws teeb meem tuaj yeem ua tau los ntawm tes (ntawm daim ntawv duab), lossis nrog kev siv lub tshuab xam zauv. Graphing ib qhov system ntawm linear equations yog yooj yim li graphing ob kab ncaj. Thaum cov kab yog graphed, qhov kev daws yuav yog tus (x, y) xaj khub uas ob kab sib tshuam (hla)
Yuav ua li cas muaj pes tsawg tus tooj liab atoms koj yuav tsum tau kab ntawm ib sab los tsim ib kab 1'm ntev?
Los ntawm kev sib piv, lub ntiaj teb cov pej xeem tsuas yog hais txog 7? 109 neeg. Yog tias koj tuaj yeem ua kab 100,000,000 tooj liab atoms ib sab, lawv yuav tsim ib txoj kab ntev li 1 cm
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Koj yuav daws tau cov lus nug piv txwv yooj yim li cas?
Txhawm rau daws cov lus nug no, koj yuav tsum xub ntxiv ua ke ob qho ntawm qhov sib piv piv txwv li 4 + 2 = 6. Tom qab ntawd koj yuav tsum faib tag nrho cov nyiaj uas siv tus lej xws li 600/6 = 100. Txhawm rau ua kom paub ntau npaum li cas txhua tus neeg tau txais, koj mam li muab lawv faib los ntawm 100