Cov txheej txheem:
Video: Yuav ua li cas koj sau raws li ib feem nyob rau hauv daim ntawv yooj yim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum sau cov feem ntau hauv daim ntawv yooj yim, muaj ob txoj cai ua raws li:
- Nug seb tus lej thiab tus lej puas tuaj yeem muab faib los ntawm tus lej sib npaug, uas yog hu ua ib qho tseem ceeb.
- Saib seb yam tsawg kawg ib tus lej hauv feem yog primenumber.
Tom qab ntawd, ua li cas koj sau ib feem rau hauv daim ntawv yooj yim?
Daim ntawv yooj yim tshaj plaws ( ib feem ) A 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. Ua kom yooj yim feem : faib sab saum toj thiab hauv qab los ntawm tus lej loj tshaj uas yuav faib ob tus lej raws nraim (lawv yuav tsum nyob txhua tus lej).
Qhov thib ob, ua li cas koj thiaj paub yog tias ib feem tuaj yeem ua kom yooj yim? Yog qhov txawv yog 1, ces tus feem yog yooj yim . Txo Ib feem uas tsis tau yooj yim . A feem yuav yooj yim los ntawm kev nrhiav tus lej loj tshaj plaws uas ua tau muab faib ua tus lej ua lej thiab tus lej, thiab tom qab ntawd faib txhua tus los ntawm tus lej ntawd.
Hauv qhov no, dab tsi yog hauv nws daim ntawv yooj yim tshaj plaws?
Yog li, nrhiav qhov daim ntawv yooj yim tshaj plaws ntawm ib tug fraction txhais tau tias txo cov saum toj thiab hauv qab ntawm cov feem mus rau qhov tsawg tshaj plaws tus lej ua tau. Cov daim ntawv yooj yim tshaj plaws yog qhov tsawg tshaj plaws sib npaug feem ntawm tus lej.
Daim ntawv yooj yim tshaj plaws ntawm 9 12 yog dab tsi?
Teb thiab piav qhia: Hloov 9/12 rau nws daim ntawv yooj yim tshaj plaws , wedivided the numerator and denominator by the GCF which is 3. Peb paub tias 3/4 yog tus simplest daim ntawv ntawm 9/12.
Pom zoo:
Yuav ua li cas koj tig ib feem rau hauv nws daim ntawv yooj yim?
Daim Ntawv Simplest (fractions) Ib feem yog nyob rau 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. 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)
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej Peb xub sau tag nrho cov lej ua ib feem, piv txwv li, sau nws faib los ntawm ib qho; Piv txwv li: 7 yog sau ua 71. Peb mam li muab cov zauv. Peb muab cov denominators. Yog tias yuav tsum tau ua kom yooj yim, nws ua tiav thiab tom qab ntawd peb sau cov feem kawg
Yuav ua li cas koj sau txoj kab nqes nqes intercept daim ntawv nyob rau hauv tus qauv daim ntawv?
Standard form yog lwm txoj hauv kev los sau daim ntawv nqes hav-intercept (as opposed to y=mx+b). Nws sau li Ax+By=C. Koj tuaj yeem hloov daim ntawv nqes hav-intercept rau cov qauv zoo li no: Y=-3/2x + 3. Tom ntej no, koj cais qhov y-intercept (qhov no nws yog 2) zoo li no: Ntxiv 3/2x rau txhua sab ntawm kab zauv kom tau qhov no: 3/2x + y = 3
Yuav ua li cas koj sau ib qho kev sib npaug nyob rau hauv txoj kab nqes intercept daim ntawv rau ib lub rooj?
Siv qhov sib npaug y = mx + b thiab ntsaws rau hauv tus nqi m (m = 1) thiab ib khub ntawm (x, y) kev tswj hwm ntawm lub rooj, xws li (5, 3). Ces daws rau b. Thaum kawg, siv qhov m thiab b qhov tseem ceeb koj pom (m = 1 thiab b = -2) los sau cov kab zauv
Koj paub li cas thaum ib qho kev qhia nyob rau hauv nws daim ntawv yooj yim tshaj plaws?
Yog li, txhawm rau paub tias qhov kev qhia algebraic yog nyob rau hauv nws daim ntawv yooj yim tshaj plaws, koj yuav tsum ua kom paub tseeb tias koj tsis tuaj yeem faib nws ntxiv. Txij li thaum koj tuaj yeem tshem tawm (X + Y) ntawm qhov sib npaug, (X^2 - Y^2) / (X + Y) = (X - Y), uas yog daim ntawv yooj yim ntawm qhov kev qhia no