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Thaum twg y txawv inversely nrog x?

Cov txheej txheem:

Thaum twg y txawv inversely nrog x?
Thaum twg y txawv inversely nrog x?

Video: Thaum twg y txawv inversely nrog x?

Video: Thaum twg y txawv inversely nrog x?
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Anonim

Cov kab lus "y varies inversely as x" los yog "y is inversely proportional to x" txhais tau hais tias as x tau loj dua, y tau me dua, los yog vice versa Lub tswv yim no yog txhais ua ob txoj kev. yx=k rau qee qhov tsis tu ncua k, hu ua qhov tsis tu ncua ntawm proportionality. Siv qhov kev txhais lus no yog qhov xav tau.

Yuav hloov pauv li cas nrog X txhais li cas?

nqe lus y varies inversely as x txhais tau tias thaum x nce, ydecreases los ntawm tib yam.

Koj daws tau li cas rau y varied inversely as x?

Ib qho kev hloov pauv hloov pauv tuaj yeem sawv cev los ntawm kab zauv xy=k lossis y=kx. Ntawd yog, y varies inversely li x yog tias muaj qee qhov tsis muaj xoom tsis tu ncua k xws li, xy=k lossis y=kx qhov twg x≠0, y≠0.

Thaum y varies inversely as x squared?

Kev piav qhia: Vim tias y sib txawv ntawm qhov sib txawv ntawm x, y∝1x2, lossis y=kx2 qhov twg k yog qhov tsis tu ncua.

Kev sib npaug ntawm cov kab lus yog dab tsi yog tias y txawv ncaj qha nrog x thiab inversely nrog Z?

A General Note: Joint Variation

Piv txwv li, yog tias x txawv ncaj qha nrog y thiab z, peb muaj x=kyz x=k y z. Yog tias x txawv ncaj qha nrog y thiab inversely nrog z, peb muaj x=kyz x=k y z.

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