Domain Algebra 2 yog dab tsi?
Domain Algebra 2 yog dab tsi?

Video: Domain Algebra 2 yog dab tsi?

Video: Domain Algebra 2 yog dab tsi?
Video: Domain and Range of Functions | JEE Maths Video lectures | Ghanshyam Tewani | Cengage 2024, Kaum ib hlis
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Cov sau npe ntawm kev sib raug zoo (lossis ntawm kev ua haujlwm) yog cov txheej txheem ntawm txhua qhov kev sib txuas ntawm qhov kev sib raug zoo ntawd. Piv txwv li, lub sau npe ntawm kev sib raug zoo (0, 1), (1, 2 ), (1, 3), (4, 6) x = 0, 1, 4. The sau npe ntawm daim duab qhia chaw hauv qab no yog - 2 , 3, 4, 10: Phau Ntawv Qhia.

Ib yam li ntawd, koj tuaj yeem nug, ua li cas koj thiaj nrhiav tau lub luag haujlwm ntawm kev ua haujlwm?

Rau hom no muaj nuj nqi , cov sau npe yog txhua tus lej tiag. A muaj nuj nqi nrog ib feem nrog qhov sib txawv ntawm tus denominator. Yuav nrhiav tau sau npe ntawm hom no muaj nuj nqi , teem lub hauv qab sib npaug rau xoom thiab tsis suav nrog tus nqi x koj pom thaum koj daws qhov sib npaug. A muaj nuj nqi nrog ib tug txawv txav nyob rau hauv ib tug radical kos npe.

Ib sab saum toj no, koj ua li cas thiaj nrhiav tau lub npe thiab ntau yam ntawm kev sib npaug? Yuav Ua Li Cas: Muab cov qauv rau kev ua haujlwm, txiav txim siab lub npe thiab ntau yam.

  1. Tshem tawm ntawm tus sau txhua qhov kev nkag siab uas ua rau kev faib los ntawm xoom.
  2. Tshem tawm los ntawm lub npe txhua qhov kev tawm tswv yim uas tsis muaj tseeb (lossis tsis tau txhais) tus lej tso tawm.
  3. Siv tus nqi input siv tau los txiav txim qhov ntau ntawm cov txiaj ntsig tso tawm.

Ib sab saum toj no, dab tsi yog qhov sau thiab ntau yam?

Vim lub sau npe yog hais txog cov txheej txheem ntawm cov khoom siv tau, cov sau npe ntawm ib daim duab muaj tag nrho cov input qhov tseem ceeb qhia nyob rau hauv x-axis. Cov ntau yog cov txheej txheem ntawm cov txiaj ntsig tau tso tawm, uas tau pom ntawm y-axis.

Puas yog 0 tus lej tiag?

Cov lej tiag muaj zero ( 0 ), tus lej zoo thiab tsis zoo (-3, -1, 2, 4), thiab tag nrho cov zauv feem thiab lej nyob nruab nrab ntawm (0.4, 3.1415927, 1/2). Cov lej tiag muab faib ua rational thiab irrational tus lej.

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