Sine thiab cosecant yog qhov zoo hauv Quadrant 2, tangent thiab cotangent yog qhov zoo hauv Quadrant 3, thiab cosine thiab secant yog qhov zoo hauv Quadrant 4.
Dab tsi quadrant yog cotangent zoo hauv?
In quadrant III, "Trig," tsuas yog tangent thiab nws txoj haujlwm sib luag, cotangent, zoo.
Yuav ua li cas quadrants yuav cotangent tsis zoo?
In Quadrant IV, sec θ \displaystyle \sec{theta} secθ yog qhov zoo, csc θ \displaystyle \csc{theta} cscθ thiab cot θ \displaystyle \cot{theta} cotθ yog negative.
Can a cotangent tsis zoo?
Raws li koj tuaj yeem pom los ntawm kev kawm cov lus ntawm cov txiaj ntsig cotangent thiab daim duab ntawm cov cotangent muaj nuj nqi, tus nqi cotangent yog qhov tsis zoo rau txhua lub ces kaum uas lub sine thiab cosine muaj qhov sib txawv (piv txwv li hauv Quadrant II thiab Quadrant IV), thiab zoo rau txhua lub ces kaum uas cov sine thiab cosine muaj tib lub cim (piv txwv li …
negative cotangent txhais li cas?
Cotangent ntawm x sib npaug 0 thaum tus lej cos(x)=0. Qhov no tshwm sim thaum x=π 2 (muaj ib qho tsis kawg ntawm qhov tseem ceeb uas nws dhau los ua 0 tab sis peb tsuas yog xaiv qhov yooj yim tshaj plaws uas los rau hauv siab). Ntawm qhov tod tes, tangent (lossis tsis zoo tangent) ntawm x yuav 0 thaum tus lej sin(x)=0.
