Video: Puas yog sine muaj nqi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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Ntxiv mus, kev txhaum sib npaug li cas?
Koj yuav tsum muab lawv rau kev nco. Ib txwm, ib txwm, lub sib ntawm lub kaum sab xis yog sib npaug sab nraud muab faib los ntawm hypotenuse (opp / hyp hauv daim duab). Cov cosine yog sib npaug sab uas nyob ib sab faib los ntawm lub hypotenuse (adj/hyp). (1) Nco: sib = (oppositeside) / hypotenuse. cosine = (sab ib sab) / hypotenuse.
Ib tug kuj nug, dab tsi yog sine siv rau? Sine , Cosine thiab Tangent yog lub luag haujlwm tseem ceeb siv hauv Trigonometry thiab ua raws li Txoj Cai-AngledTriangle. Ua ntej tau daig rau hauv kev ua haujlwm, nws yuav pab muab lub npe rau txhua sab ntawm daim duab peb sab: "Opposite" yog opposite tothe kaum θ
Kuj tseem paub yog, sine suav li cas?
Nyob rau hauv txhua txoj cai daim duab peb sab, lub sib ntawm lub kaum sab xis x yog qhov ntev ntawm sab nraud (O) muab faib los ntawm qhov ntev ntawm lub hypotenuse (H). Nyob rau hauv ib tug qauv, nws yog sau li ' kev txhaum 'tsis muaj 'e': Feem ntau nco tau tias "SOH" - lub ntsiab lus Sine yog Opposite overHypotenuse. See SOH CAH TOA.
Puas yog Sine ib qho tas mus li?
Yog li ntawd, lub sij hawm ntawm sib thiab cosine graphs yog. Part III: Ntxiv a tas li , c, rau cov tswv yim ntawm peb txoj haujlwm. Sine thiab cosine yog lub sijhawm ua haujlwm thiab lub sijhawm ntawm ib leeg yog 2p.
Pom zoo:
Dab tsi yog qhov sau thiab ntau ntawm sine muaj nuj nqi?
Cov haujlwm sine thiab cosine muaj lub sijhawm ntawm 2π radians thiab tangent muaj nuj nqi muaj aperiod ntawm π radians. Domain thiab ntau yam: Los ntawm graphsabove peb pom tias rau ob qho tib si sine thiab cosinefunctions tus sau yog txhua tus lej tiag thiab qhov ntau yog txhua qhov tseeb ntawm & rho tawm 1 txog +1 suav nrog
Muaj pes tsawg guanine bases puas yog 50 lub hauv paus khub ob txoj hlua DNA 100 bases tag nrho muaj yog tias nws muaj 25 adenine bases?
Yog li, muaj tag nrho ntawm 25 + 25 = 50 adenine thiab thymine hauv tag nrho. Qhov ntawd tawm 100− 50 = 50 seem hauv paus. Nco ntsoov tias cytosine thiab guanine daim ntawv cog lus nrog ib leeg, thiab yog li lawv sib npaug ntawm cov nyiaj. Tam sim no peb tuaj yeem faib los ntawm 2 kom tau txais tus lej ntawm guanine lossis cytosine hauv paus
Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms?
Tus nqi zoo attracts tus nqi tsis zoo thiab ua rau lwm tus nqi zoo. Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms? Cov nqi hluav taws xob yog cov cuab yeej ntawm tag nrho cov atoms
Dab tsi yog qhov inverse hyperbolic sine muaj nuj nqi?
Lub hyperbolic sine muaj nuj nqi, sinhx, yog ib-rau-ib, thiab yog li ntawd muaj ib tug zoo-txhais inverse, sinh− 1x, qhia nyob rau hauv xiav nyob rau hauv daim duab. Los ntawm lub rooj sib tham, cosh− 1x yog coj los txhais tau tias tus lej zoo y xws li x = coshy
Yuav ua li cas koj thiaj paub tias muaj nuj nqi yog lub zog muaj nuj nqi?
VIDEO Ib yam li ntawd, tib neeg nug, dab tsi ua rau lub zog ua haujlwm? A lub zog ua haujlwm yog a muaj nuj nqi qhov twg y = x ^n qhov twg n yog tus lej tiag tiag. Ntau tus niam txiv muaj nuj nqi xws li linear muaj nuj nqi thiab quadratic muaj nuj nqi yog qhov tseeb lub zog ua haujlwm .