In the domain range?

Cov txheej txheem:

In the domain range?
In the domain range?
Anonim

Lub npe ntawm qhov muaj nuj nqi f(x) yog cov txheej txheem ntawm txhua qhov tseem ceeb uas lub luag haujlwm tau txiav txim siab, thiab qhov ntau ntawm txoj haujlwm yog txheej ntawm tag nrho cov txiaj ntsig uas f siv. (Nyob hauv tsev kawm ntawv sau ntawv, tej zaum koj yuav hu ua lub chaw hloov pauv thiab qhov ntau qhov kev daws teeb meem.

Kuv yuav nrhiav tau lub npe thiab ntau yam ntawm kev ua haujlwm li cas?

Yuav Ua Li Cas Pom Lub Npe thiab Ntau Yam ntawm Ib Qhov Kev Sib Tw? Txhawm rau nrhiav cov npe thiab ntau yam, peb tsuas yog daws qhov sib npaug y=f (x) los txiav txim siab qhov tseem ceeb ntawm tus kheej hloov pauv x thiab tau txais lub npe. Txhawm rau xam qhov ntau ntawm cov haujlwm, peb tsuas yog express x as x=g(y) thiab tom qab ntawd nrhiav tus sau ntawm g(y).

Koj sau npe thiab ntau npaum li cas?

Peb tuaj yeem sau qhov sau npe thiab ntau yam hauv interval notation, uas siv qhov tseem ceeb hauv cov kab ke los piav qhia cov lej. Nyob rau hauv lub sij hawm cim, peb siv ib tug square bracket [thaum lub teeb muaj xws li cov endpoint thiab ib tug parenthesis (los qhia tias qhov kawg point yog tsis suav los yog lub ncua sij hawm yog unbounded.

Koj txhais li cas hauv kev sau npe thiab ntau yam?

u =union symbol (tsis sib tshooj) n=sib tshooj. Cov lej suav nrog yog ib feem ntawm qhov muaj peev xwm txawm tias cov lej tsis suav nrog tsis yog ib feem ntawm qhov ua tau.

Puas yog cov tswv yim ntawm qhov ntau?

Tus sau yog cov tswv yim, tus nqi ywj pheej-nws yog dab tsi nkag mus rau hauv kev ua haujlwm. Qhov ntau yog qhov tso zis, nyob ntawm tus nqi-nws yog dab tsi los tawm. Domain thiab ntau yam yuav raug txwv rau qee qhovCov txiaj ntsig tsis sib xws, lossis lawv tuaj yeem suav nrog txhua tus lej nyob txhua qhov chaw, mus rau qhov kawg thiab dhau mus.

Pom zoo: