Lub caij nyoog ntawm cosine yog dab tsi?
Lub caij nyoog ntawm cosine yog dab tsi?

Video: Lub caij nyoog ntawm cosine yog dab tsi?

Video: Lub caij nyoog ntawm cosine yog dab tsi?
Video: Caij Nyoog quas tsis tau (nkauj tshiab 2020​-2021)​By : Hnub yaj & ​nkauj Zoo​ Xyooj​ 2024, Kaum ib hlis
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Lub sijhawm ntawm lub sijhawm ua haujlwm yog lub sijhawm lub sijhawm ntawm x-tus nqi uas lub voj voog ntawm daim duab uas tau rov ua dua nyob rau hauv ob qho tib si lus dag. Yog li ntawd, nyob rau hauv cov ntaub ntawv ntawm lub hauv paus cosine function, f(x) = cos (x), lub sij hawm yog 2π.

Tsis tas li lo lus nug yog, lub caij nyoog ntawm kev ua haujlwm trig yog dab tsi?

Qhov zaus ntawm a trigonometric muaj nuj nqi yog tus naj npawb ntawm cov voj voog nws ua tiav hauv ib qho muab lub sijhawm . Qhov no lub sijhawm feem ntau yog 2π radians (los yog 360º) rau sine thiab cosine nkhaus. Qhov no sine nkhaus, y = sin x, ua tiav 1 lub voj voog hauv lub lub sijhawm los ntawm 0 mus rau 2 π radians.

Ib tug kuj yuav nug, dab tsi yog lub sij hawm ntawm tangent? tan −1 x, los yog arctan x, muaj npe thiab ntau yam. tan −1 x yog ANGLE nyob rau hauv lub sijhawm (−π/2, π/2) uas tangent yog x.

Kuj nug, dab tsi yog qhov kev hloov pauv ntawm cosine?

Txij li thaum cosine yog qhov piv ntawm sab uas nyob ib sab mus rau lub hypotenuse, tus nqi ntawm cov inverse cosine yog 30 °, lossis txog 0.52 radians.

Cov duab ntawm Rov qab Trigonometric Muaj nuj nqi.

Muaj nuj nqi Domain Ntau yam
cot-1(x) (−∞, ∞) (0, π)
sec-1(x) (−∞, −1]∪[1, ∞) [0, π 2)∪(π 2, π]
csc-1(x) (−∞, −1]∪[1, ∞) [−π2, 0)∪(0, π2]

Dab tsi yog qhov amplitude ntawm daim duab?

thiab hu ua Periodic Functions. Cov Amplitude yog qhov siab ntawm kab nruab nrab mus rau lub ncov (los yog mus rau lub trough). Los yog peb tuaj yeem ntsuas qhov siab ntawm qhov siab tshaj plaws mus rau qhov qis tshaj plaws thiab faib qhov ntawd los ntawm 2. The Phase Shift yog nyob deb npaum li cas qhov kev ua haujlwm tau hloov mus rau kab rov tav los ntawm txoj haujlwm li niaj zaus.

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