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Video: Dab tsi yog Sin Cos Tan formula?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov haujlwm ntawm kev txhaum , cos thiab tan tuaj yeem xam raws li hauv qab no: Sine Muaj nuj nqi : kev txhaum (θ) = Rov qab / Hypotenuse. CosineFunction : cos (θ) = Adjacent / Hypotenuse. Tangent muaj nuj nqi : tan (θ) = Pem Hauv Ntej / Sab Nraud.
Yog li ntawd, koj ua li cas xam Sin Cos Tan?
Nyob rau hauv txhua txoj cai angled daim duab peb sab, rau txhua lub kaum sab xis:
- Lub sine ntawm lub kaum sab xis = qhov ntev ntawm qhov opposite sab. 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.
Ib yam li ntawd, cov qauv rau trigonometry yog dab tsi? Trigonometry Muaj nuj nqi Cov qauv Lawv hu ua trigonometric muaj nuj nqi. Lub rau trigonometric kev ua haujlwm yog sine, cosine, secant, co-secant, tangent thiab co-tangent.
Ntawm no, SOH CAH TOA yog dab tsi?
Lub sine ntawm lub kaum sab xis yog sib npaug rau sab opposite theangle muab faib los ntawm lub hypotenuse. Lub cosine ntawm lub kaum sab xis yog sib npaug rau sab uas nyob ib sab mus rau lub kaum sab xis muab faib los ntawm hypotenuse. Thetangent ntawm lub kaum sab xis yog sib npaug rau sab opposite lub kaum sab xis muab faib los ntawm sab uas nyob ib sab rau lub kaum sab xis.
Cov mis rau cosine yog dab tsi?
Hauv txhua daim duab peb sab, lub cosine ntawm lub kaum sab xis yog qhov ntev ntawm sab uas nyob ib sab (A) muab faib los ntawm qhov ntev ntawm lub hypotenuse (H). Hauv ib qauv , nws yog sau yooj yim li ' cos '. Feem ntau nco ntsoov ua "CAH" - lub ntsiab lus Cosine yog nyob ib sab ntawm Hypotenuse. See SOH CAH TOA.
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Dab tsi yog cos sin thiab tan ntawm daim duab peb sab?
Lub cosine (feem ntau abbreviated 'cos') yog qhov piv ntawm qhov ntev ntawm sab uas nyob ib sab mus rau lub kaum sab xis mus rau qhov ntev ntawm lub hypotenuse. Thiab lub tangent (feem ntau abbreviated 'tan') yog qhov piv ntawm qhov ntev ntawm sab opposite lub kaum sab xis rau qhov ntev ntawm sab uas nyob ib sab. SOH → sin = 'opposite' / 'hypotenuse'