Video: Vim li cas peb kawm trigonometry piv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kawm ntawm trigonometry koom nrog kev kawm ua li cas trigonometric kev ua haujlwm - xws li sine lossis cosine ntawm lub kaum sab xis, piv txwv li - ua tau siv los ua cov kaum sab xis thiab qhov ntev ntawm ib qho duab. Lawv kuj yuav tsum tau muab cov dej num no los siv rau hauv cov kev ua ub ua no los pab cov tub ntxhais kawm txhim kho lawv cov kev txawj.
Yog li ntawd, yog vim li cas trigonometry siv nyob rau hauv txoj cai daim duab peb sab?
Trigonometry yog siv hauv ib qho txoj cai angled daim duab peb sab vim peb paub qhov ntawd daim duab peb sab lub kaum sab xis yog 180 thiab yog tias nws yog txoj cai lub kaum sab xis daim duab peb sab dua li lwm lub kaum sab xis yog tsawg dua 90 thiab nws yuav tuaj nyob rau hauv thawj quadrant qhov twg tag nrho cov kev txhaum, cos thiab tan yog qhov zoo tab sis thaum peb txav mus ntxiv rau 2 quadrant cos thiab tan yog qhov tsis zoo thiab hauv
Kuj Paub, vim li cas thiaj li yuav tsum tau khaws cia hauv trigonometry hauv cov ntaub ntawv kawm? Trigonometry yog siv nyob rau hauv ntau txoj hauj lwm nrog rau kev soj ntsuam, engineering, tshuaj, thiab astronomy. Trigonometry yuav tsum ua khaws cia rau hauv cov ntaub ntawv kawm vim hais tias nws yog ib qho ntawm cov kev kawm feem ntau siv hauv kev ua lej thiab tseem tsim nyog kom nkag siab cov ntsiab lus qhia hauv cov chav kawm lej qib siab.
Yog li ntawd, trigonometry yog dab tsi?
Trigonometry (los ntawm Greek trigōnon, "daim duab peb sab" thiab metron, " ntsuas") yog ib ceg ntawm kev ua lej uas kev kawm kev sib raug zoo ntawm sab lengths thiab lub kaum sab xis ntawm daim duab peb sab. Lub teb tau tshwm sim hauv ntiaj teb Hellenistic thaum xyoo pua 3 BC los ntawm kev siv geometry mus rau astronomical kev kawm.
Dab tsi yog qhov yooj yim trigonometry?
Trigonometry , ceg ntawm kev ua lej cuam tshuam nrog cov haujlwm tshwj xeeb ntawm cov ces kaum thiab lawv daim ntawv thov rau kev suav. Muaj rau lub luag haujlwm ntawm lub kaum sab xis feem ntau siv hauv trigonometry . Lawv cov npe thiab cov ntawv luv yog sine (kev txhaum), cosine (cos), tangent (tan), cotangent (cot), secant (sec), thiab cosecant (csc).
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