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Koj yuav daws qhov coefficient li cas los ntawm kev ua kom tiav cov square?
Koj yuav daws qhov coefficient li cas los ntawm kev ua kom tiav cov square?

Video: Koj yuav daws qhov coefficient li cas los ntawm kev ua kom tiav cov square?

Video: Koj yuav daws qhov coefficient li cas los ntawm kev ua kom tiav cov square?
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Kaum ib hlis
Anonim

Tam sim no peb tuaj yeem daws qhov sib npaug Quadratic hauv 5 kauj ruam:

  1. Kauj Ruam 1 Faib tag nrho cov ntsiab lus los ntawm a (the coefficient ntawm x2).
  2. Kauj Ruam 2 Txav tus lej sij hawm (c/a) mus rau sab xis ntawm kab zauv.
  3. Kauj ruam 3 Ua kom tiav lub square nyob rau sab laug ntawm qhov sib npaug thiab sib npaug qhov no los ntawm kev ntxiv tus nqi qub rau sab xis ntawm qhov sib npaug.

Hauv qhov no, coefficients yog dab tsi?

Hauv lej, a coefficient yog ib qho kev sib txuam hauv qee lub sij hawm ntawm polynomial, series, lossis ib qho kev qhia; nws feem ntau yog tus lej, tab sis tej zaum yuav yog ib qho kev qhia. Piv txwv li, yog tias y raug suav tias yog ib qho parameter hauv cov lus hais saum toj no, qhov coefficient ntawm x yog −3y, thiab qhov tsis tu ncua coefficient yog 1.5 + y.

Qhov thib ob, thaum twg koj tuaj yeem ua tsis tiav lub xwmfab? Los ntawm txoj kev, tshwj tsis yog koj 'tau hais tias koj yuav tsum siv ua kom tiav lub square , koj yuav tej zaum yeej tsis siv txoj kev no hauv kev xyaum tiag tiag thaum daws qhov sib npaug ntawm plaub fab. Ib txhia lwm txoj kev (xws li factoring) yuav ua kom pom tseeb thiab nrawm dua, lossis lwm yam Quadratic Formula (xyuas tom ntej) yuav siv tau yooj yim dua.

Yog li ntawd, dab tsi tas li yuav tsum tau ntxiv kom tiav lub square?

Cov tas li uas yuav tsum tau ntxiv thiab rho tawm yog (B) 1/64. yog siv los daws qhov quadratic equation los ntawm ua kom tiav square.

Thaum twg kuv yuav tsum ua kom tiav lub square?

Tom ntej no, yog hais tias tus coefficient ntawm lub squared lub sij hawm yog 1 thiab lub coefficient ntawm lub linear (middle) lub sij hawm yog txawm, ua kom tiav lub square yog ib txoj kev zoo rau siv. Thaum kawg, tus qauv quadratic yuav ua haujlwm ntawm txhua qhov kev sib npaug plaub npaug.

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