Cov txheej txheem:
- txhais li cas thaum qhov sib npaug hu ua quadratic equation?
- Lub ntsiab lus ntawm quadratic quadratic yog dab tsi?
- Vim li cas nws tsis yog qhov sib npaug plaub npaug?
Video: Vim li cas quadratics hu ua quadratics?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2023-12-16 01:49
Nyob rau hauv lej, lub quadratic yog ib qho hom teeb meem uas cuam tshuam nrog qhov sib txawv ntawm nws tus kheej - kev ua haujlwm hu ua squaringhom lus no muab los ntawm thaj tsam ntawm ib lub square yog nws sab ntev multiplied los ntawm nws tus kheej. Lo lus "quadratic" los ntawm quadratum, lo lus Latin rau square.
txhais li cas thaum qhov sib npaug hu ua quadratic equation?
Nyob hauv algebra, ib qho kev sib npaug plaub npaug (los ntawm Latin quadratus rau "square") yog txhua qhov sib npaug uas tuaj yeem hloov kho hauv daim qauv raws li qhov x sawv cev ib qho tsis paub, thiab a, b, thiab c sawv cev rau cov lej paub, qhov twg a ≠ 0 Yog tias a=0, ces qhov sib npaug yog linear, tsis yog plaub, raws li tsis muaj.term.
Lub ntsiab lus ntawm quadratic quadratic yog dab tsi?
Hauv kev ua lej, lo lus quadratic piav qhia yam uas hais txog squares, rau kev ua haujlwm ntawm squaring, rau cov ntsiab lus ntawm qib thib ob, lossis qhov sib npaug lossis cov qauv uas muaj cov ntsiab lus. Quadratus yog Latin rau square.
Vim li cas nws tsis yog qhov sib npaug plaub npaug?
Examples of NON-quadratic Equations
bx − 6=0 is NOT a quadratic equation because tsis muaj x2 term. x 3 − x2 − 5=0 is NOT a quadratic equation because there is a x3 term (tsis yog tso cai nyob rau hauv quadratic equations).
Introduction to Quadratic Theory (1 of 2: Why we care about quadratics)
Pom zoo:
Kev hloov pauv feem ntau tsis zoo vim li cas lossis vim li cas ho tsis?
Feem ntau ntawm kev hloov pauv yog nruab nrab ntawm lawv cov teebmeem ntawm cov kab mob uas lawv tshwm sim. Kev hloov pauv tau zoo tuaj yeem ua ntau dua los ntawm kev xaiv ntuj. Kev hloov pauv tsis zoo yuav ua rau muaj kab mob caj ces lossis mob qog noj ntshav .
Vim li cas thiab vim li cas thiaj txhais tau?
Txhua qhov laj thawj thiab qhov laj thawj, ib yam li hauv Nws tau mus rau qhov laj thawj thiab yog li ntawm lub koom haum kev saws me nyuam txoj cai thiab cov txheej txheem. Cov lus no niaj hnub no yog redundancy vim yog vim li cas thiab yog li ntawd txhais tau tib yamYav tas los, txawm li cas los xij, vim li cas thiaj qhia qhov laj thawj rau qee yam thiab yog li ntawd nws los ua li cas.
Puas tib neeg hloov zuj zus los ntawm chimps vim li cas los yog vim li cas ho tsis?
Nws yog ib lo lus teb yooj yim: Tib neeg tsis tau hloov zuj zus los ntawm chimpanzees los yog lwm yam zoo kawg nkaus apes uas nyob niaj hnub no. Peb sib koom ib tug poj koob yawm txwv uas nyob kwv yees li 10 lab xyoo dhau los . Puas tib neeg hloov zuj zus los ntawm apes?
Tus yam ntxwv ntawm quadratics thiab linear zoo li cas?
Kev ua haujlwm tawm ib leeg yog ib-rau-ib thaum lub luag haujlwm quadratic tsis yog. Ib txoj haujlwm ua haujlwm ua rau txoj kab ncaj nraim thaum lub quadratic muaj nuj nqi ua rau parabolaKev ua haujlwm ntawm cov kab ncaj nraim yog ncaj nraim thaum kos duab plaub fab kev ua haujlwm yog qhov nyuaj, ntau kauj ruam .
Yuav sau li cas vim li cas thiab yog vim li cas?
Kev txhais ntawm yog vim li cas thiab (tus) yog li ntawd: yog vim li cas rau ib yam Nws piav qhia vim li cas thiab yog li ntawd ntawm tus nqi nce . Yuav ua li cas thiab yog vim li cas? Txhua qhov laj thawj thiab qhov laj thawj, ib yam li hauv Nws tau mus rau qhov laj thawj thiab yog li ntawm lub koom haum kev saws me nyuam txoj cai thiab cov txheej txheem.
