Koj pom arc trig ua haujlwm li cas?
Koj pom arc trig ua haujlwm li cas?

Video: Koj pom arc trig ua haujlwm li cas?

Video: Koj pom arc trig ua haujlwm li cas?
Video: npauj​ kub​ xyooj​ ua​ nkauj​ xwb​ nyob​ 2024, Hlis ntuj nqeg
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Peb qhia txog qhov inverse muaj nuj nqi as y=sin-1(x). Nws yog nyeem y yog tus thim rov qab ntawm sib x thiab txhais tau tias y yog tus lej tiag tiag uas nws sib tus nqi yog x. Ceev faj ntawm cov ntawv sau siv.

Cov duab ntawm Inverse Trigonometric Functions.

Muaj nuj nqi Domain Ntau yam
csc-1(x) (−∞, −1]∪[1, ∞) [−π2, 0)∪(0, π2]

Tom qab ntawd, ib tus tuaj yeem nug, koj pom ARC ua haujlwm li cas?

Koj siv thim rov qab trigonometry muaj nuj nqi los daws cov kab zauv xws li sin x = 1/2, sec x = –2, los yog tan 2x = 1. Nyob rau hauv algebra equations, koj tuaj yeem daws tau tus nqi ntawm x los ntawm kev faib txhua sab ntawm qhov sib npaug los ntawm cov coefficient ntawm qhov sib txawv. los yog los ntawm kev ntxiv tib yam rau txhua sab, thiab lwm yam.

Qhov thib ob, arc kev txhaum yog dab tsi? Arcsin txhais Lub arcsine ntawm x yog txhais raws li inverse sine muaj nuj nqi ntawm x thaum -1≦x≦1. Thaum lub sine ntawm y yog sib npaug rau x: sin y = x. Ces lub arcsine ntawm x yog sib npaug rau inverse sine muaj nuj nqi ntawm x, uas yog sib npaug rau y: arcsin x = sin-1 x = y.

Tsis tas li lo lus nug yog, 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].

Sinhx yog dab tsi?

Sinh (α) yog ib qho hyperbolic sine. Whereas a trigonometrical Sin(α) yog qhov ntev ntawm ib qho perpendicular poob los ntawm ib qho taw tes rau ntawm ib lub voj voog (lub vojvoog ntawm lub voj voog = 1) rau ntawm x-axis rau lub kaum sab xis α.

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