Cov txheej txheem:
Video: Koj sau li cas 13/4 ua tus lej sib xyaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
- Raws li qhov tsis zoo feem tsis tsim nyog (|tus lej| > | tus lej|): - 13/4 = - 13/4
- Raws li ib tug sib xyaw . (ib tag nrho tus lej thiab ib feem kom raug, ntawm tib lub cim): - 13/4 = - 3 1/4
- Raws li feem pua: - 13/4 = - 325%
Ib yam li ntawd, dab tsi yog 13 raws li tus lej sib xyaw?
Tag nrho tus lej ib feem ntawm sib xyaw pom los ntawm kev faib cov 13 los ntawm 9. Nyob rau hauv cov ntaub ntawv no peb tau 1. Cov feem feem ntawm lub sib xyaw yog pom los ntawm kev siv cov seem ntawm kev faib, uas nyob rau hauv cov ntaub ntawv no yog 4 ( 13 muab faib los ntawm 9 yog 1 seem 4).
Ib tug kuj nug, 13/4 puas tuaj yeem yooj yim? 134 twb nyob rau hauv daim ntawv yooj yim. Nws ua tau sau ua 3.25 nyob rau hauv daim decimal (thov mus rau 6 tus lej).
Ua li no, ua li cas koj hloov mus rau tus lej sib xyaw?
Txhawm rau hloov cov feem tsis tsim nyog rau ib feem sib xyaw, ua raws li cov kauj ruam no:
- Faib tus lej los ntawm tus denominator.
- Sau tag nrho cov lus teb.
- Tom qab ntawd sau ib yam dab tsi ntxiv rau saum tus denominator.
Dab tsi yog 133 hauv ib tus lej sib xyaw?
| 13/3 twb txo (simplified) Cov feem tsis tsim nyog, rov sau dua ua tus lej sib xyaw: 13 ÷ 3 = 4 thiab seem = 1 => 13/3 = (4 × 3 + 1)/3 = 4 + 1/3 = 4 1/3 | Lub Ob Hlis 20 09:20 UTC (GMT) |
|---|---|
| 50/424 = (50 ÷ 2)/(424 ÷ 2) = 25/212 | Lub Ob Hlis 20 09:20 UTC (GMT) |
| 208/3, 847 twb txo (simplified) | Lub Ob Hlis 20 09:20 UTC (GMT) |
Pom zoo:
Puas yog Oxygen yog cov khoom sib xyaw lossis sib xyaw?
Puas yog oxygen yog ib qho khoom sib xyaw lossis sib xyaw? Oxygen yog ib yam khoom. Nws yog tsim los ntawm tib hom atom, oxygen atoms (8 protons). Nws tshwm sim kom ruaj khov tshaj li molecules ntawm muaj pes tsawg leeg
Puas yog txoj cai ntawm kev sib xyaw ua ke siv tau rau cov khoom sib xyaw?
Cov teeb meem tsis tuaj yeem tsim los yog rhuav tshem, txawm hais tias itis ib qho khoom, qhov sib xyaw, lossis sib xyaw. b) Txoj cai lij choj ntawm qhov tseeb muaj pes tsawg leeg tsuas yog siv rau cov khoom sib txuas nkaus xwb, vim hais tias nws hais txog qhov tsis tu ncua, lossis qhov tseeb, muaj pes tsawg leeg ntawm cov ntsiab lus hauv ib qho chaw
Puas yog cov pa roj carbon dioxide yog qhov sib xyaw lossis sib xyaw?
CO2 yog lub npe hu ua carbon dioxide. Ib lub ntsiab yog ib yam khoom ua los ntawm ib hom atom. Cov tshuaj uas tsim cov khoom sib tov tuaj yeem yog cov khoom lossis cov khoom sib txuas, tab sis cov khoom sib tov tsis tsim cov tshuaj sib txuas. Cov khoom sib xyaw tuaj yeem sib cais rau hauv lawv cov khoom qub ib zaug ntxiv (kwv yees) yooj yim
Yuav ua li cas koj thiaj nrhiav tau cov lej ntawm cov lej lej lossis cov lej geometric?
Cov mis rau qhov suav ntawm n cov ntsiab lus ntawm geometric ib ntus yog muab los ntawm Sn = a[(r^n - 1)/(r - 1)], qhov twg a yog thawj lub sij hawm, n yog lub sij hawm tus lej thiab r yog tus qhov piv txwv
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