Video: Dab tsi yog qhov sib npaug cuav hauv lej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib qho algebraic kev sib npaug yog ib nqe lus hais txog kev sib npaug ntawm ob qhov ntau lossis cov kab lus algebraic. Feem ntau algebraic kev sib npaug yog TRUE thaum qee qhov tseem ceeb tau hloov pauv rau qhov sib txawv (xws li x), thiab yog FALSE rau tag nrho lwm cov nqi. Rau tag nrho lwm cov txiaj ntsig ntawm x, lub kev sib npaug yog FALSE.
Ua raws li qhov no, piv txwv li kev sib npaug ntawm lej yog dab tsi?
Ib kev sib npaug yog a lej kab lus uas muaj ob sab sib npaug sib cais los ntawm qhov sib npaug. 4 + 6 = 10 piv txwv ntawm ib kev sib npaug . Rau piv txwv , 12 yog tus coefficient hauv lub kev sib npaug 12n = 24. Ib qho kev sib txawv yog ib tsab ntawv uas sawv cev rau tus lej tsis paub.
Ib yam li ntawd, qhov piv txwv ntawm kev sib npaug qhib yog dab tsi? Teb thiab piav qhia: Ib yam kev sib npaug uas muaj variables, thiab qhov tseeb tus nqi ntawm cov kev sib npaug nyob ntawm tus nqi ntawm cov kev hloov pauv no yog hu ua ib qhib equation . Ib piv txwv ntawm kev sib npaug qhib Luas = 3 x + 1 = 10.
Tom qab ntawd, qhov sib npaug no puas muaj tseeb / cuav lossis qhib?
muaj tseeb yog thaum muaj teeb meem muaj tseeb thiab sib npaug qhov uas hais tias nws sib npaug. cuav yog thaum nws tsis sib npaug qhov hais tias nws sib npaug. Qhib kab lus yog thaum muaj qhov sib txawv ntawm qhov teeb meem lossis kev sib npaug.
Dab tsi ua rau kev sib npaug muaj tseeb?
Kev daws Kev sib npaug los ntawm Plugg hauv Cov Nqi. Ib qho kev daws teeb meem yog ib qho txiaj ntsig ntawm qhov sib txawv uas ua qhov teev tseg kev sib npaug muaj tseeb . Kev daws teeb meem yog cov txheej txheem ntawm txhua qhov sib txawv uas ua tus kev sib npaug muaj tseeb . Piv txwv li, kev daws teeb meem rau x2 = - 9 yog Ø, vim tsis muaj tus lej, thaum squared, yog sib npaug rau tus lej tsis zoo.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Dab tsi yog qhov kev sib npaug sib npaug hauv lej?
Kev sib npaug. Ib qho kev sib npaug uas muaj tseeb rau qee tus nqi ntawm qhov sib txawv thiab tsis muaj tseeb rau lwm tus. Piv txwv li: Cov kab zauv 2x – 5 = 9 yog conditional vim nws tsuas yog muaj tseeb rau x = 7. Lwm qhov tseem ceeb ntawm x tsis txaus siab rau qhov sib npaug
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Dab tsi yog cov lej suav tag nrho cov lej suav lej thiab lej lej?
Cov lej tiag yog feem ntau muab faib ua cov lej tsis sib haum xeeb thiab tsis sib haum xeeb. Cov zauv rational suav nrog tag nrho cov lej thiab feem. Txhua tus lej tsis zoo thiab tag nrho cov lej ua rau cov lej suav. Tag nrho cov lej suav nrog txhua tus lej ntuj thiab xoom
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no