Dab tsi yog cov lus teb tseeb hauv algebra?
Dab tsi yog cov lus teb tseeb hauv algebra?

Video: Dab tsi yog cov lus teb tseeb hauv algebra?

Video: Dab tsi yog cov lus teb tseeb hauv algebra?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Plaub Hlis Ntuj
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Nws txhais tau tias koj tawm ntawm koj teb nyob rau hauv daim ntawv ntawm ib feem los yog radicals (square root symbol) - tsis yog tus lej teb.

Hais txog qhov no, dab tsi yog qhov tseeb square cag?

Hauv lwm lo lus, tawm hauv square cag ntawm 10 nyob rau hauv radical daim ntawv muab ib meej teb, tus lej uas thaum squared ua 10. Mus rau ib daim ntawv ntawm tus lej teb tsis yog meej - Nws yog qhov kwv yees, txawm tias nws yog qhov kwv yees zoo heev.

Tsis tas li ntawd, lub hauv paus square puas tuaj yeem ua tus lej? Lo lus teb kom raug: Kom nrhiav tau square cag ntawm no kaum tsib peb hloov nws mus rau hauv scientific notation. Vim muaj ib tug txawm exponent, peb ua tau faib lub exponenet los ntawm 2 kom tau nws square cag . Cov square cag 36 yog 6, square cag ntawm 40 yuav tsum me ntsis ntau tshaj 6, nyob ib ncig ntawm 6.32.

Hais txog qhov no, tus nqi tseeb yog dab tsi?

Tus nqi tiag tiag yog qhov uas koj tsis tuaj yeem kwv yees qhov tus nqi koj yuav tsum tau meej, piv txwv li; koj tsis tuaj yeem kwv yees ib yam li nyob ib ncig ntawm 5 cm; tsis yog koj xav tau ib qho tus nqi tseeb ib 5,62. Tus nqi tiag tiag.

SURD yog dab tsi?

Surds yog cov lej tshuav hauv 'square root form' (los yog 'cube root form' thiab lwm yam). Lawv yog cov irrational lej. Yog vim li cas peb tso lawv li surds yog vim nyob rau hauv daim ntawv decimal lawv yuav mus mus ib txhis thiab yog li qhov no yog ib qho clumsy heev ntawm kev sau lawv.

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