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Video: Koj paub li cas trigonometric piv siv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj peb kauj ruam:
- Xaiv qhov twg trig ratio siv . - Xaiv qhov kev txhaum, cos, lossis tan los ntawm kev txiav txim siab koj sab twg paub thiab sab twg koj tab tom nrhiav.
- Hloov.
- daws.
- Kauj ruam 1: Xaiv qhov twg trig ratio siv .
- Kauj Ruam 2: Hloov.
- Kauj Ruam 3: daws.
- Kauj ruam 1: Xaiv qhov trig ratio siv .
- Kauj Ruam 2: Hloov.
Hais txog qhov no, SOH CAH TOA yog dab tsi?
SOHCAHTOA . Ib txoj hauv kev ntawm kev nco qab yuav ua li cas suav cov sine, cosine, thiab tangent ntawm lub kaum sab xis. SOH sawv cev rau Sine sib npaug sib npaug sib npaug ntawm Hypotenuse. CAH sawv cev rau Cosine sib npaug ntawm Adjacent tshaj Hypotenuse. TOA sawv cev rau Tangent sib npaug sib npaug sib npaug tshaj Adjacent.
Tom qab ntawd, lo lus nug yog, yuav ua li cas kuv thiaj nrhiav tau qhov ntev ntawm daim duab peb sab? Hauv txoj cai no daim duab peb sab , koj tau txais kev ntsuas rau lub hypotenuse, c, thiab ib ceg, b. Lub hypotenuse yeej ib txwm rov qab lub kaum sab xis thiab nws yog qhov ntev tshaj plaws sab ntawm daim duab peb sab . Rau nrhiav tus ntev ntawm ceg a, hloov qhov paub qhov tseem ceeb rau hauv Pythagorean Theorem. daws rau a2.
Kuj paub, ua li cas koj pom lub kaum sab xis uas ploj lawm?
Txhawm rau txiav txim siab ntsuas qhov tsis paub lub kaum sab xis , nco ntsoov siv tag nrho cov lej ntawm 180 °. Yog ob lub kaum sab xis muab, ntxiv rau lawv ua ke thiab rho tawm ntawm 180 °. Yog ob lub kaum sab xis yog tib yam thiab tsis paub, rho tawm cov paub lub kaum sab xis ntawm 180 ° thiab ces faib los ntawm 2.
Koj pom qhov tangent ntawm lub kaum sab xis li cas?
Nyob rau hauv txhua txoj cai daim duab peb sab, lub tangent ntawm lub kaum sab xis yog qhov ntev ntawm sab nraud (O) muab faib los ntawm qhov ntev ntawm sab uas nyob ib sab (A). Hauv ib qauv , nws yog sau yooj yim li 'tan'.
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 siv trigonometric ratios mus nrhiav sab lengths?
Nyob rau hauv txhua lub kaum sab xis, rau txhua lub kaum sab xis: Lub sine ntawm lub kaum sab xis = qhov ntev ntawm sab nraud. qhov ntev ntawm lub hypotenuse. Lub cosine ntawm lub kaum sab xis = qhov ntev ntawm sab uas nyob ib sab. qhov ntev ntawm lub hypotenuse. Lub tangent ntawm lub kaum sab xis = qhov ntev ntawm qhov opposite sab. qhov ntev ntawm sab uas nyob ib sab
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