2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov no yog qhov xwm txheej vim tias quadratum yog lo lus Latin rau square, thiab txij li thaj tsam ntawm ib square ntawm sab ntev x yog muab los ntawm x2, a polynomial equation muaj exponent ob yog hu ua a plaub fab ("square-zoo li") equation. Los ntawm extension, a plaub fab nto yog qhov thib ob-order algebraic nto.
Ntxiv mus, 2nd degree polynomial hu ua dab tsi?
Thib ob degree polynomials kuj yog hu ua quadratic polynomials . Lawv cov duab yog lub npe hu ua ib parabola. Cov khoom tsim thaum lub parabola tig ntawm nws axis ntawm symmetry yog lub npe hu ua ib tug paraboloid, los yog parabolic reflector.
Ib yam li ntawd, ob lub hauv paus polynomial yog dab tsi? Ob tug keeb kwm yog sib npaug, lawv yog 5, 5. 5 yog hu ua a ob lub hauv paus . (Saib Zaj Lus Qhia 37 ntawm Algebra, Nqe Lus Nug 4.) Ntawm a ob lub hauv paus , daim duab tsis hla lub x-axis. A ob lub hauv paus tshwm sim thaum lub quadratic yog ib tug zoo meej square trinomial: x2 ± 2 ax + a2; uas yog, thaum lub quadratic yog lub square ntawm binomial: (x ± a)2.
Yog li, puas yog quadratic polynomial muaj degree ntawm 2?
A plaub fab equation yog ib qho uas muaj lub variable tsa rau lub hwj chim 2 . General equation ntawm A plaub fab equation is ax² + bx + c = 0. This polynomial muaj 2 kev daws teeb meem. Nws degree yog 2 tab sis tsis loj dua 2.
Vim li cas quadratic equations muaj ob txoj kev daws teeb meem?
1 Teb. A plaub fab kev qhia tuaj yeem sau ua cov khoom ntawm ob linear yam thiab txhua yam tuaj yeem sib npaug rau xoom, Yog li muaj nyob ob txoj kev daws teeb meem.
Pom zoo:
Yuav ua li cas koj txiav txim siab qhov kawg tus cwj pwm ntawm ib tug polynomial?
Tom qab ntawd, tus coefficient ntawm lub sij hawm txhuas yuav txiav txim siab tus cwj pwm ntawm polynomial. Yog tias qhov sib txawv (cia hais tias X) yog qhov tsis zoo, ces X hauv lub sijhawm siab tshaj plaws tsim qhov tsis zoo. Peb mam li muab cov coefficient ntawm lub sij hawm coj mus rau qhov tsis zoo los txiav txim qhov kawg tus cwj pwm
Yuav ua li cas yog vim li cas vim li cas lub epigenome hloov?
Kev ua neej nyob thiab ib puag ncig (xws li kev haus luam yeeb, noj zaub mov thiab kab mob sib kis) tuaj yeem ua rau tus neeg muaj kev ntxhov siab uas ua rau muaj tshuaj lom neeg. Cov lus teb no, dhau los, feem ntau ua rau muaj kev hloov pauv hauv epigenome, qee qhov tuaj yeem ua rau puas tsuaj
Dab tsi yog kab lus hauv lej 2nd?
"Ib kab lus yog qhov pib ib daim duab uas qhia cov ntaub ntawv raws tus lej kab. Muaj ib kab ntawm X's lossis cov dots uas tau sau tseg saum toj no cov lus teb tsuas yog los qhia cov naj npawb ntawm cov lus teb los ntawm cov ntaub ntawv. "
Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
Lub zog muaj peev xwm hluav taws xob Ue yog lub zog muaj peev xwm khaws cia thaum cov nqi tawm ntawm qhov sib npaug (xws li lub zog muaj peev xwm gravitational). Lub peev xwm hluav taws xob zoo ib yam, tab sis ib tus nqi, Ueq. Ib qho hluav taws xob muaj peev xwm sib txawv ntawm ob lub ntsiab lus hu ua voltage, V = Ue2q−Ue1q
Vim li cas nws tseem ceeb heev uas yuav tsum xav txog ntau yam thaum txiav txim siab cov hauv paus hniav ntawm cov kab zauv polynomial?
Piv txwv li, tus naj npawb ntawm lub sij hawm ib tug muab polynomial sib npaug muaj ib lub hauv paus ntawm ib tug muab point yog lub multiplicity ntawm lub hauv paus. Qhov kev xav ntawm ntau qhov tseem ceeb yog qhov tseem ceeb kom suav tau kom raug yam tsis muaj kev qhia tshwj xeeb (piv txwv li, ob lub hauv paus suav ob zaug). Li no cov lus qhia, ' suav nrog ntau ntau'