Video: Dab tsi yog qhov sib npaug polynomial?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ntxiv rau, ob polynomials yog sib npaug Yog tias tag nrho cov coefficients ntawm ib qho yog qhov tsis tu ncua (tsis xoom) ntau ntawm cov sib txuas coefficients ntawm lwm qhov.
Ntawm no, cov lus sib npaug yog dab tsi?
Sib npaug yog cov lus qhia uas yog tib yam, txawm tias lawv yuav saib txawv me ntsis. Yog tias koj ntsaws rau tib tus nqi sib txawv rau hauv cov lus sib npaug , lawv txhua tus yuav muab tib tus nqi rau koj thaum koj yooj yim.
Tom qab ntawd, lo lus nug yog, dab tsi yog thiab tsis yog polynomial? Txoj Cai: Dab tsi Tsis yog Polynomial Polynomials tsis tuaj yeem muaj kev faib los ntawm qhov sib txawv. npr, 2 y27x/4 yog a polynomial , vim 4 tsis yog qhov sib txawv. Txawm li cas los xij, 2y2 + 7x / (1 + x) tsis yog a polynomial raws li nws muaj kev faib los ntawm kev sib txawv. Polynomials tsis tuaj yeem muaj cov lej tsis zoo.
Ib yam li ntawd, dab tsi yog polynomial identities?
Polynomial cov cim yog qhov sib npaug uas muaj tseeb rau txhua qhov ua tau ntawm qhov sib txawv. Piv txwv li, x²+2x+1=(x+1)² is an tus kheej . Qhov kev taw qhia video no muab piv txwv ntau ntawm tus kheej thiab tham txog yuav ua li cas peb ua pov thawj qhov sib npaug yog ib qho tus kheej.
Coefficients yog dab tsi?
Hauv lej, a coefficient yog ib qho kev sib txuam hauv qee lub sij hawm ntawm polynomial, series, lossis ib qho kev qhia; nws feem ntau yog tus lej, tab sis tej zaum yuav yog ib qho kev qhia. Piv txwv li, yog tias y raug suav hais tias yog ib qho parameter hauv cov lus hais saum toj no, tus coefficient ntawm x yog −3y, thiab qhov tsis tu ncua coefficient yog 1.5 + y.
Pom zoo:
Puas yog qhov sib npaug ntawm ob lub polynomials ib txwm yog polynomial?
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