Video: Tan sib npaug li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub tangent ntawm x txhais tau tias yog nws cov sine faib los ntawm nws cov cosine: tan x = sin x cos x. Lub cotangent ntawm x txhais tau tias yog cosine ntawm x muab faib los ntawm sine ntawm x: cot x = cosx sin x.
Hauv qhov no, tus nqi tan yog dab tsi?
Tangent lub Tan muaj nuj nqi yog txhais raws li a tus nqi (los yog tus piv) tau los ntawm kev faib cov Sab Nraud Sab Nraud Sab Nraud Sab Nraud nrog rau kev siv lub kaum sab xis raug ntsuas hauv RightAngled Daim duab peb sab. Nws kuj yog tib yam li Sin(deg)/Cos(deg).
Ib sab saum toj no, CSC sib npaug li cas? Cosecant ( csc ua ) - Trigonometryfunction Hauv daim duab peb sab txoj cai, lub cosecant ntawm lub kaum sab xis yog qhov ntev ntawm lub hypotenuse muab faib los ntawm qhov ntev ntawm qhov oppositeside. Nyob rau hauv ib tug qauv, nws yog abbreviated rau xwb ' csc ua '.
Xav txog qhov no, tan A yog dab tsi?
Hauv txhua daim duab peb sab, qhov tangent ntawm lub kaum sab xis yog qhov ntev ntawm sab nraud (O) muab faib los ntawm qhov ntev ntawm sab sab (A). Nyob rau hauv ib tug formula, nws yog sau yooj yim li ' tan '. Feem ntau nco ntsoov ua "TOA" - lub ntsiab lus Tangent yogOpposite tshaj Adjacent. See SOH CAH TOA. tan.
Vim li cas thiaj hu ua tangent?
Raws li nws dhau los ntawm qhov chaw uas tus tangent kab thiab nkhaus sib ntsib, hu ua qhov point ntawm tangency, lub tangent kab yog "mus rau tib qho kev taw qhia" raws li qhov nkhaus, thiab yog li qhov zoo tshaj plaws ncaj-kab kwv yees rau qhov nkhaus ntawm qhov taw tes. Lo lus " tangent "los ntawm Latin tangere, "touch".
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
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