Cov txheej txheem:
- Cov kauj ruam los ua kom yooj yim cov lus qhia
- Nov yog ib qho piv txwv ntawm qhov kev txiav txim ntawm kev ua haujlwm li cas:
Video: Yuav ua li cas koj sau ib qho kev qhia hauv nqe lus qis tshaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau sau ib rational kev qhia hauv nqe lus qis tshaj , peb yuav tsum xub pom txhua yam tseem ceeb (constants, variables, or polynomials) los yog tus lej thiab tus lej. Yog li, peb yuav tsum ua tus lej thiab tus lej. Thaum tus lej thiab tus denominator tau ua tiav, hla tawm txhua yam sib txawv.
Xav txog qhov no, koj ua li cas yooj yim cov zauv feem sib npaug?
Cov kauj ruam los ua kom yooj yim cov lus qhia
- 1) Saib rau yam uas muaj feem rau tus lej & tus lej.
- 2) 3x yog ib qho tseem ceeb ntawm tus lej & tus lej.
- 3) Ncua tseg qhov tseem ceeb.
- 4) Yog tias ua tau, nrhiav lwm yam uas muaj feem rau tus lej thiab tus lej.
Ib tug kuj yuav nug, daim ntawv yooj yim txhais li cas? Ib feem yog hauv daim ntawv yooj yim tshaj plaws thaum sab saum toj thiab hauv qab tsis tuaj yeem ua me me, thaum tseem yog tus lej tag nrho. Piv txwv: 2/4 tuaj yeem ua kom yooj yim rau 1/2. Txhawm rau kom yooj yim ib feem: faib sab saum toj thiab hauv qab los ntawm tus lej loj tshaj plaws uas yuav faib ob tus lej raws nraim (lawv yuav tsum nyob txhua tus lej).
Ib yam li ib tug yuav nug, koj yuav daws cov lus hais li cas?
Nov yog ib qho piv txwv ntawm qhov kev txiav txim ntawm kev ua haujlwm li cas:
- (3 + 5)2 x 10+ 4.
- Ua ntej, ua raws li P, kev ua haujlwm hauv kab lus:
- = (8)2 x 10+ 4.
- Tom qab ntawd, ua raws li E, kev ua haujlwm ntawm tus exponent:
- Luas = 64 x 10 + 4.
- Tom ntej no, ua multiplication:
- = 640 + 4.
- Thiab kawg, ua ntxiv:
Koj paub li cas thaum ib qho kev qhia algebraic nyob rau hauv daim ntawv yooj yim?
Yog li, nyob rau hauv thiaj li yuav paub tas ib algebraic qhia yog nyob rau hauv nws daim ntawv yooj yim tshaj plaws , koj yuav tsum paub tseeb tias koj tsis muaj peev xwm faib nws ntxiv. Txij li thaum koj tuaj yeem tshem (X + Y) ntawm qhov sib npaug, (X^2 - Y^2) / (X + Y) = (X - Y), uas yog daim ntawv yooj yim tshaj plaws ntawm no kev qhia.
Pom zoo:
Yuav ua li cas koj sau ib qho kev sib npaug hauv point slope form muab ob lub ntsiab lus?
Muaj ntau hom ntawv uas peb tuaj yeem sau qhov sib npaug ntawm ib kab: daim ntawv point-slope, daim ntawv nqes hav-intercept form, tus qauv daim ntawv, thiab lwm yam. Qhov sib npaug ntawm ib kab muab ob lub ntsiab lus (x1, y1) thiab (x2, y2). ) los ntawm cov kab dhau los yog muab los ntawm, ((y - y1) / (x - x1)) / ((y2 - y1) / (x2 - x1))
Koj sau ib qho piv txwv thesis nqe lus li cas?
Tswv yim: Yuav kom sau ib daim ntawv thesis ua tiav: Tsis txhob faus ib daim ntawv thesis zoo nyob nruab nrab ntawm ib nqe lus lossis lig hauv ntawv. Ua kom meej thiab meej npaum li sai tau; zam cov lus tsis meej pem. Qhia cov ntsiab lus ntawm koj daim ntawv tab sis zam cov kab lus xws li, "Lub ntsiab lus ntawm kuv daim ntawv yog …"
Nws txhais li cas los sau koj cov lus teb nyob rau hauv cov nqe lus ntawm pi?
Cov lus teb meej txhais tau tias koj tsis xav tau lub tshuab xam zauv, tsuas yog tso koj cov lus teb kawg uas qhia txog Pi. Lub voj voog ntawm lub voj voog tuaj yeem pom siv cov qauv C = Pid. C yog qhov ncig (qhov perimeter) thiab d yog txoj kab uas hla. Yog li hauv paus koj tsuas yog yuav tsum tau muab txoj kab uas hla los ntawm Pi
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Koj puas siv cov lus qhia hauv kev sau ntawv sau?
Tsab ntawv no yog ntsuas koj lub peev xwm los tsim qhov kev sib cav uas siv cov peev txheej. Yog tias koj siv cov ntaub ntawv los ntawm cov peev txheej, koj yuav tsum sau nws. Yog tias koj nqa cov ntawv tawm ntawm qhov chaw, koj yuav tsum muab tso rau hauv cov lus hais. Tom qab koj hais los yog piav ib qhov chaw, hais nws raws li koj xav tau hauv ib daim ntawv: (Source F) lossis (Gilman)