Video: Koj sau tus lej li cas hauv lub zog ntawm kaum lub cim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv powers ntawm kaum notation , loj tus lej yog sau siv kaum rau a zog , los yog exponent. Tus exponent qhia koj pes tsawg zaus kaum yog yuav tau muab faib los ntawm nws tus kheej kom sib npaug tus lej koj xav tau sau . Piv txwv li, 100 tuaj yeem sau ua 10x10 = 102. 10,000 = 10 x 10 x 10 = 104.
Tom qab ntawd, koj yuav suav li cas rau lub zog thib 10?
Rau xam 2to ua 10i zog , koj yuav tsum muab 2 los ntawm nws tus kheej 10 sij hawm. Nws yuav zoo li no: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2.
Ib yam li ntawd, muaj pes tsawg tus lej tseem ceeb muaj 100? Yog tias koj xav tau qhov ntsuas 100 nrog peb cov duab tseem ceeb (hais txog qhov tsis paub tseeb ntawm), koj tuaj yeem sau nws li 100 . (nrog rau tus lej lej tom qab) lossis, tsawg dua, zoo li, lossis (zoo dua) nrog qhov tsis meej meej xws li lossis 100 rau peb cov duab tseem ceeb ”.
Tom qab ntawd, ib tug kuj yuav nug, uas yog ib tug tseeb sawv cev ntawm.000025 nyob rau hauv scientific notation?
tau sau rau hauv scientific notation . Yog hais tias tus decimal hloov mus txoj cai sab, lub zog ntawm 10 yog qhov tsis zoo thiab yog tias tus lej hloov mus rau sab laug, lub zog ntawm 10 yog qhov zoo. Raws li peb tau muab 0.000025 hauv tus qauv sau ntawv . Raws li, lub decimal point yog hloov mus rau txoj cai sab, yog li lub zog ntawm 10 yog qhov tsis zoo.
Yuav ua li cas koj sau 0.00001 hauv scientific notation?
Rau sau 0.0001 ib scientific notation , peb yuav tsum txav tus lej lej plaub lub ntsiab lus mus rau sab xis, uas txhais tau tias muab faib los ntawm 104. Li no hauv scientific notation 0.0001 = 1.0 × 10−4 (nco ntsoov tias raws li peb tau txav cov zauv ib qho taw tes rau sab xis peb muab 10−4.
Pom zoo:
Yuav ua li cas koj nrhiav tau tus kab pheeb ces kaum ntawm txoj cai kaum sab xis?
Txhawm rau nrhiav qhov ntev ntawm kab pheeb ces kaum (orhypotenuse) ntawm txoj cai daim duab peb sab, hloov qhov ntev ntawm ob sab perpendicular rau hauv cov mis a2 + b2 = c2, qhov twg a thiab b yog qhov ntev ntawm sab perpendicular thiab c yog qhov ntev ntawm lub hypotenuse
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
Vim li cas lub cube cag ntawm tus lej tsis zoo yog tus lej tsis zoo?
Tus lej tsis zoo lub voos xwmfab hauv paus yuav tsis zoo Txij li qhov ntsuas tus lej txhais tau tias tsa nws mus rau lub zog thib 3 - uas yog khib - lub voos xwmfab ntawm cov lej tsis zoo yuav tsum yog qhov tsis zoo. Thaum lub qhov hluav taws xob tawm (xiav), qhov tshwm sim tsis zoo. Thaum lub qhov hluav taws xob qhib (daj), qhov tshwm sim yog qhov zoo
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua