Nrhiav cov cotangent Peb paub tias cov cotangent yog qhov sib cuam tshuam ntawm tangent. Txij li thaum tangent yog qhov piv ntawm qhov sib txawv rau qhov nyob ib sab, cotangent yog qhov piv ntawm qhov nyob ib sab mus rau qhov opposite.
Yuav ua li cas yog nyob ib sab ntawm opposite?
Nyob rau hauv ib daim duab peb sab, lub hypotenuse yog sab ntev tshaj plaws, ib sab "tawm tsam" yog ib qho hla ntawm ib lub kaum sab xis, thiab sab "nyob ib sab" yog tom ntej mus rau lub kaum sab xis muab. … Lub hypotenuse ntawm ib daim duab peb sab yog ib txwm yog sab opposite lub kaum sab xis.
Yuav ua li cas yog cot Theta?
Kev ua haujlwm cosine sib txuas yog secant: sec(theta)=1/cos(theta). Kev ua haujlwm sib luag yog cosecant, csc(theta)=1/sin(theta). Lub luag haujlwm tangent yog cotangent, qhia ob txoj hauv kev: cot(theta)=1/tan(theta) los yog cot(theta)=cos(theta)/sin(theta). … Cosecant theta yog 1 tshaj y thiab cotangent yog x tshaj y.
cotangent sib npaug li cas?
Cov cotangent ntawm x txhais tau tias yog tus cosine ntawm x faib los ntawm sine ntawm x: cot x=cos x sin x. Lub secant ntawm x yog 1 muab faib los ntawm cov cosine ntawm x: sec x=1 cos x, thiab cov cosecant ntawm x txhais tau tias yog 1 faib los ntawm cov sine ntawm x: csc x=1 sin x.
Yuav ua li cas koj pom lub cotangent ntawm lub kaum sab xis?
Lub cotangent ntawm ib lub kaum sab xis nyob rau hauv daim duab peb sab yog kev sib raug zoo los ntawm kev faib qhov ntev ntawm sab uas nyob ib sab ntawm lub kaum sab xis muab los ntawm qhov ntev ntawm sab opposite rau qhov muabangle. Qhov no yog qhov sib txuam ntawm tangent muaj nuj nqi.
