Koj hloov qhov ntsuas qhov tsis zoo thiab qhov zoo li cas?
Koj hloov qhov ntsuas qhov tsis zoo thiab qhov zoo li cas?

Video: Koj hloov qhov ntsuas qhov tsis zoo thiab qhov zoo li cas?

Video: Koj hloov qhov ntsuas qhov tsis zoo thiab qhov zoo li cas?
Video: DeathRhyme - Hmoov Tsis Zoo ft. Melinda Vang official audio 2024, Kaum ib hlis
Anonim

Thov lub Negative Exponent Txoj cai. Negative exponents nyob rau hauv tus zauv tau tsiv mus rau tus denominator thiab ua zoo exponents . Negative exponents nyob rau hauv tus denominator tau tsiv mus rau tus lej thiab ua zoo exponents.

Xav txog qhov no, qhov ntsuas tsis zoo txhais li cas?

Txoj cai ntawm Tsis zoo Indices . Thaum lub ntsuas ntawm pronumerals yog tsis zoo , we get a qhov ntsuas tsis zoo . Ib qho kev qhia nrog a negative index yog tus reciprocal ntawm kev qhia nrog zoo qhov ntsuas . Piv txwv li, x-2 = Ua ntej peb pom cov qhov ntsuas law of division – xm ÷ x , qhov twg m > n, thiab tau txais cov lus qhia xm-n.

Ib sab saum toj no, 2 lub zog 4 yog dab tsi? Lub hwj chim ntawm ib tug xov tooj yog tau los ntawm multiply nws los ntawm nws tus kheej.

Nce tus lej rau tus hwj chim uas yog tus lej zoo tag nrho.

2.2 tuaj yeem sau tau 22 "Ob squared" los yog "2 mus rau 2nd zog"
2.2.2.2.2 = 25 "Ob tug mus rau 5th hwj chim" los yog yooj yim "2 mus rau 5th"
2.2.2.2.2.2 = 26 "Ob tug mus rau 6th hwj chim" los yog yooj yim "2 mus rau 6th"

Kev sib raug zoo, lub zog puas tuaj yeem ua tsis zoo?

Hauv hluav taws xob engineering, hwj chim sawv cev rau tus nqi ntawm hluav taws xob lub zog ntws mus rau hauv los yog tawm ntawm ib qho khoom siv los yog tswj ntim. Fais fab yog ib qho kos npe kom muaj nuj nqis; lub zog tsis zoo tsuas yog sawv cev xwb hwj chim ntws nyob rau hauv qhov opposite direction ntawm zoo hwj chim.

Yuav ua li cas thaum tus exponent tsis zoo?

A negative exponent tsuas yog txhais tau hais tias lub hauv paus yog nyob rau sab tsis ncaj ncees lawm ntawm txoj kab feem, yog li koj yuav tsum tig lub hauv paus mus rau sab nraud. Piv txwv li, "x2"(hais tias "ecks rau qhov rho tawm ob") tsuas yog txhais tau tias "x2, tab sis hauv qab, raws li hauv 1 x 2 frac{1}{x^2} x21 ".

Pom zoo: