Video: Puas yog Cos tib yam li SEC?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Secant, cosecant thiab cotangent, yuav luag ib txwm sau li sec , cosec thiab cot yog trigonometric functions xws li kev txhaum, cos thiab tan. Nco tseg, sec x tsis yog ib yam raws li cos -1x (qee zaum sau ua arccos x). Nco ntsoov, koj tsis tuaj yeem faib los ntawm xoom thiab yog li cov ntsiab lus no tsuas yog siv tau thaum cov denominators tsis yog xoom.
Ntawm no, SEC sib npaug li cas?
Secant ( sec ) - Trigonometry muaj nuj nqi Hauv daim duab peb sab txoj cai, lub secant ntawm ib lub kaum sab xis yog qhov ntev ntawm lub hypotenuse muab faib los ntawm qhov ntev ntawm sab uas nyob ib sab. Nyob rau hauv ib tug formula, nws yog abbreviated rau xwb ' sec '.
Ib sab saum toj no, inverse secant sib npaug rau cosine? 6 Teb. Qhov ntawd yog ib qho teeb meem ntawm kev sau ntawv thiab tej zaum tsis muaj kev txhais. Peb txhais sec x as the multipplication thim rov qab ntawm cos x, nyob rau hauv lwm yam lus, tsau a∈R, sec a yog tus lej ntawd sec a cos ib = 1. Tam sim no arccosx yog qhov txawv me ntsis: nws yog thim rov qab kev ua haujlwm ntawm cos x.
Tib neeg kuj nug, Secant cuam tshuam li cas rau cosine?
Peb paub tias cov secant yog qhov sib txawv ntawm cov cosine . Txij li thaum cosine yog qhov piv ntawm qhov uas nyob ib sab mus rau lub hypotenuse, secant yog qhov piv ntawm hypotenuse rau qhov uas nyob ib sab.
CSC SEC thiab cot yog dab tsi?
csc ua sawv cev rau cosecant, sec stands rau secant, thiab cot sawv rau cotangent. Lawv yog cov haujlwm sib luag ntawm sine, cosine, thiab tangent hauv qhov kev txiav txim.
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