Video: Koj xam CSC li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cosecant ( csc ua ) - Trigonometry muaj nuj nqi
Nyob rau hauv txoj cai daim duab peb sab, lub cosecant ntawm ib lub kaum sab xis yog qhov ntev ntawm lub hypotenuse muab faib los ntawm qhov ntev ntawm qhov opposite sab. Nyob rau hauv ib tug formula, nws yog abbreviated rau xwb ' csc ua '.
Hauv qhov no, CSC sib npaug li cas?
Lub secant ntawm x yog 1 muab faib los ntawm cov cosine ntawm x: sec x = 1 cos x, thiab cov cosecant ntawm x txhais tau tias yog 1 faib los ntawm sine ntawm x: csc ua x = 1 sin x.
Tom qab ntawd, lo lus nug yog, COS sib npaug li cas? Ib txwm, ib txwm, lub sine ntawm lub kaum sab xis yog sib npaug sab nraud faib los ntawm hypotenuse (opp / hyp hauv daim duab). Cov cosine yog sib npaug sab uas nyob ib sab faib los ntawm hypotenuse (adj/hyp).
Ib yam li ntawd, koj tuaj yeem nug, ua li cas koj pom CSC SEC thiab lub txaj ntawm lub tshuab xam zauv?
Nrhiav sec , csc ua , thiab cot los ntawm tshuab xam zauv . Rau nrhiav sec x,ua prv nrhiav tus nqi ntawm cos x, ces nias 1/x. Rau nrhiav csc x,ua prv nrhiav tus nqi sin x, ces nias 1/x.
Dab tsi yog qhov hloov pauv ntawm kev txhaum?
Qhov cuam tshuam ntawm kev ua txhaum yog kev ua haujlwm arcsin. Tab sis sib nws tus kheej, yuav tsis yog invertible vim nws tsis txhaj, yog li nws tsis yog bijective (invertible). Txhawm rau kom tau txais arcsine muaj nuj nqi peb yuav tsum txwv qhov chaw ntawm sib rau [-π2, π2].
Pom zoo:
Yuav ua li cas koj xam tus qauv sib txawv ntawm PMP?
Cov mis siv nyob rau hauv PMBOK rau tus qauv sib txawv yog yooj yim. Nws tsuas yog (P-O) / 6. Qhov ntawd yog qhov pessimistic kev ua ub no kwv yees rho tawm qhov kev kwv yees qhov kev xav tau muab faib los ntawm rau. Qhov teeb meem yog qhov no nyob rau hauv tsis muaj txoj kev zoo los yog daim ntawv tsim ib qho kev ntsuas ntawm tus qauv deviation
Yuav ua li cas koj xam qhov ncig ntawm lub ntiaj teb ntawm nws latitude?
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Yuav ua li cas koj xam qhov muaj peev xwm poob hauv ib lub voj voog?
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