Cov txheej txheem:
Video: Koj paub li cas thaum siv Sohcahtoa?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev suav tsuas yog ib sab ntawm txoj cai kaum sab xis muab faib los ntawm lwm sab peb tsuas yog yuav tsum tau paub sab twg, thiab qhov ntawd yog qhov twg " sohcahtoa "pab.
Sine, Cosine thiab Tangent.
| Sine: | soh | sin(θ) = opposite / hypotenuse |
|---|---|---|
| Tangent: | toa | tan(θ) = opposite/adjacent |
Ib yam li ntawd, tib neeg nug, ua li cas koj paub thaum twg siv Sin Cos lossis tan?
Yog hais tias koj muaj lub hypotenuse thiab opposite sab, ces siv sine . Yog tias koj muaj lub hypotenuse thiab sab uas nyob ib sab, ces siv cosine . Yog hais tias koj muaj cov nyob ib sab thiab opposite sab, ces siv tangent.
Ib tug kuj yuav nug, yuav ua li cas kev txhaum xam? Sine ( kev txhaum ) muaj nuj nqi - Trigonometry. Nyob rau hauv ib daim duab peb sab, lub sib ntawm ib lub kaum sab xis yog qhov ntev ntawm qhov opposite sab faib los ntawm qhov ntev ntawm lub hypotenuse. Nyob rau hauv txhua txoj cai daim duab peb sab, lub sib ntawm lub kaum sab xis x yog qhov ntev ntawm sab nraud (O) faib los ntawm qhov ntev ntawm lub hypotenuse (H).
Qhov thib ob, koj puas nco qab Sin Cos Tan?
Lwm txoj kev rau nco ntsoov cov ntawv rau Kev txhaum , Cos , thiab Tan yog to nco Cov lus tsis muaj tseeb Oh, Ah, Oh-Ah (i.e. /o? ˈo?. ?/) rau O / H, A / H, O / A. Los yog, rau nco ntsoov tag nrho rau lub luag haujlwm, Kev txhaum , Cos , Tan , Cot, Sec, thiab Csc, nco cov lus O/H, A/H, Oh/Ah, Ah/Oh, H/A, H/O (i.e. /o? ˈo?.
Koj ua tangent li cas?
Piv txwv
- Kauj Ruam 1 Ob sab uas peb paub yog Tus Kheej (300) thiab nyob ib sab (400).
- Kauj Ruam 2 SOHCAHTOA qhia peb tias peb yuav tsum siv Tangent.
- Kauj Ruam 3 Xam Xaj Sab Nraud/Adjacent = 300/400 = 0.75.
- Kauj ruam 4 Nrhiav lub kaum sab xis ntawm koj lub laij lej siv tan-1
Pom zoo:
Koj paub li cas thaum siv suvat?
Qhov sib npaug SUVAT yog siv thaum acceleration tsis tu ncua thiab tshaj tawm hloov. Yog tias qhov ceev tsis tu ncua, koj tuaj yeem siv qhov nrawm, qhov deb thiab lub sijhawm daim duab peb sab. Lawv tuaj yeem siv los ua haujlwm tawm qhov pib thiab qhov kawg ceev, lub sijhawm, kev tawg thiab kev nrawm, yog tias tsawg kawg peb qhov ntau tau paub
Yuav ua li cas koj paub thaum twg yuav siv cov khoom los yog quotient txoj cai?
Kev faib ua haujlwm. Yog li, thaum twg koj pom kev sib faib ntawm ob txoj haujlwm, siv txoj cai khoom thiab nyob rau hauv rooj plaub ntawm kev faib siv txoj cai quotient. Yog tias muaj nuj nqi muaj ob qho kev sib faib thiab faib, tsuas yog siv ob txoj cai raws li. Yog tias koj pom qhov sib npaug dav nws yog ib yam zoo li, qhov twg yog qhov ua haujlwm ntawm ib leeg
Yuav ua li cas koj paub thaum twg yuav siv brackets los yog parentheses interval notation?
Nws yog ib hom kev sau ntawv uas sawv cev rau qhov nruab nrab nrog ib khub ntawm tus lej. Cov kab lus thiab cov brackets yog siv los qhia seb puas yog ib qho ntsiab lus tsis suav nrog. Ib qho kev sib dhos yog siv thaum lub ntsiab lus lossis qhov muaj nuj nqis tsis suav nrog hauv lub sijhawm, thiab siv lub bracket thaum tus nqi suav nrog
Thaum twg koj yuav tsum siv cov haujlwm series koj siv nws li cas?
Nws yog siv los txiav txim siab cov khoom ntawm ib qho kev hloov pauv, uas yog hlau A yuav hloov lwm cov hlau B hauv kev daws yog tias A siab dua hauv koob. Kev ua yeeb yam ntawm qee cov hlau ntau dua, teev nyob rau hauv qhov kev txiav txim qis ntawm reactivity
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv