Cov txheej txheem:

Koj puas tuaj yeem muab cov radicals sib txawv nrog cov lej sib txawv?
Koj puas tuaj yeem muab cov radicals sib txawv nrog cov lej sib txawv?

Video: Koj puas tuaj yeem muab cov radicals sib txawv nrog cov lej sib txawv?

Video: Koj puas tuaj yeem muab cov radicals sib txawv nrog cov lej sib txawv?
Video: 10 Nqi qhia tias koj tab tom yuav txom nyem ( mloog los mus hloov yus tus kheej) 2024, Kaum ib hlis
Anonim

Cov khoom yog ib tug zoo meej square txij li thaum 16 = 4 · 4 = 42, uas txhais tau hais tias lub hauv paus square ntawm 16 yuav muaj tag nrho tus lej teb. Koj ua tau nkaus xwb ntau tus lej uas yog ob sab hauv lossis ob qho tib si sab nraud radical cim. Thaum twg kev sib npaug ib tus lej sab hauv thiab a tus lej sab nraum lub radical , tsuas yog muab tso rau ntawm ib sab.

Ib yam li ntawd, nws tau nug, koj yuav ua li cas sib txawv cov hauv paus square?

Txoj Kev 2 Multiplying Square Roots WithCoefficients

  1. Muab cov coefficients. Ib tug coefficient yog ib tug lej nyob rau hauv pem hauv ntej ntawm lub radical kos npe.
  2. Ntxiv cov radicans.
  3. Qhia tawm cov squares zoo meej hauv radicand, yog tias ua tau.
  4. Muab lub hauv paus square ntawm lub zoo meej square los ntawm cov coefficient.

Koj puas tuaj yeem ntxiv cov radicals nrog cov ntsuas sib txawv? Ntxiv los yog rho tawm radicals , cov ntsuas thiab dab tsi nyob hauv lub radical (hu ua theradicand) yuav tsum yog tib yam nkaus. Yog tias ntsuas andradicands yog tib yam, ces ntxiv los yog rho tawm cov nqe lus ua ntej ntawm txhua qhov nyiam radical . Yog tias ntsuas orradicands tsis zoo ib yam, ces koj ua tau tsis yog ntxiv orsubtract cov radicals.

Kuj paub, koj tuaj yeem muab cov hauv paus square?

Ntxiv thiab rho cov square cag , koj xav tau muab cov cag square nrog tib lub sij hawm radical. Muaj ntau qhov xwm txheej koj ua tau ua tau yooj yim lub numberinside lub radical yuav tau ua ke nyiam cov ntsiab lus thiab tofreely ntxiv thiab rho cov square cag.

Leej twg ua pov thawj hauv paus 2 yog irrational?

Sal ua pov thawj tias lub square hauv paus ntawm 2 yog tus lej anirrational , i.e. nws tsis tuaj yeem muab raws li qhov piv ntawm ob tus lej. Tsim los ntawm Sal Khan.

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