Puas muaj ib qho khoom ntiag tug ntawm kev rho tawm?
Puas muaj ib qho khoom ntiag tug ntawm kev rho tawm?

Video: Puas muaj ib qho khoom ntiag tug ntawm kev rho tawm?

Video: Puas muaj ib qho khoom ntiag tug ntawm kev rho tawm?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
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Dab tsi Yog Tus Kheej Cov Khoom ? Ntxiv thiab rho tawm , tus kheej yog 0. Hauv kev sib faib thiab faib, tus kheej yog 1. Qhov ntawd txhais tau hais tias yog 0 ntxiv los yog rho tawm ntawm n, ces n tseem tus ib yam.

Ntawm no, dab tsi yog cov khoom ntawm kev rho tawm?

Muaj plaub (4) qhov yooj yim khoom ntawm cov zauv: uas yog; commutative, associative, distributive thiab tus kheej. Cov no khoom tsuas yog siv rau kev ua haujlwm ntawm kev ntxiv thiab sib npaug. Qhov ntawd txhais tau tias rho tawm thiab faib tsis muaj cov no khoom ua hauv.

Ib sab saum toj no, dab tsi yog ib qho khoom ntiag tug hauv lej? Cov cov khoom ntiag tug rau qhov ntxiv qhia peb tias xoom ntxiv rau txhua tus lej yog tus lej nws tus kheej. Zero hu ua "additive tus kheej "Qhov cov khoom ntiag tug rau kev sib npaug qhia peb tias tus naj npawb 1 muab ntau zaus uas tus lej muab tus lej nws tus kheej. Tus naj npawb 1 hu ua "multiplicative tus kheej ." Ntxiv.

Tom qab ntawd, lo lus nug yog, koj yuav nrhiav tau tus kheej li cas?

Qhov sib npaug cov khoom ntiag tug hais tias txhua lub sij hawm koj muab tus lej los ntawm 1, qhov tshwm sim, lossis cov khoom, yog tus lej qub. Sau tawm qhov no vaj tse sivvariables, peb tuaj yeem hais tias n * 1 = n. Nws tsis muaj teeb meem yog tias n equalsone, ib lab lossis 3.566879. Cov vaj tse ib txwm tuav.

Puas muaj ib qho khoom sib txawv ntawm kev rho tawm?

Hauv lej, ib thim rov qab kev ua haujlwm yog kev ua haujlwm uas undoes yam uas tau ua los ntawm kev ua haujlwm dhau los. Plaub qhov kev ua lej tseem ceeb yog ntxiv, rho tawm , multiplication, division. Cov thim rov qab ntawm ntxiv yog rho tawm thiab vice versa. Cov thim rov qab ofmultiplication yog division thiab vice versa.

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