Qhov tseeb, tus nqi xa rov qab los ntawm kev ua haujlwm secant rau lub kaum sab xis ntawm cuaj caum degrees lossis ob puas thiab xya caum degrees suav tias yog qhov tsis tau txhais, txij li qhov sib npaug sec (θ)=1/cos(θ)yuav koom nrog kev faib los ntawm xoom Qhov tseeb, nws yuav siv rau txhua lub kaum sab xis uas tus nqi cosine yog xoom.
Qhov twg yog secant undefined?
THE SECANT FUNCTION
Thaum tus cosine yog 0, tus secant tsis tau txhais. Thaum tus cosine nce mus txog qhov txheeb ze tshaj plaws, tus secant yog qhov txheeb ze yam tsawg kawg nkaus.
Puas yog secant undefined ntawm 90 degrees?
Tus nqi ntawm Secant 90 degree tsis tuaj yeem xamthiab tsis tau txhais nyob rau hauv lub rooj trigonometric.
Tus nqi dab tsi yog secant undefined?
Secant yog qhov sib txuas ntawm cosine, yog li lub secant ntawm ib lub kaum x rau qhov twg cos x =0 yuav tsum tsis tau txhais, vim nws yuav muaj tus lej sib npaug rau 0. tus nqi ntawm cos (pi/2) yog 0, yog li tus secant ntawm (pi)/2 yuav tsum tsis tau txhais.
Vim li cas tangent 90 undefined?
Raws li peb thawj lub kaum sab xis nce, qhov tangent yuav nce nrawm heev. Raws li peb tau los ze rau 90 degrees, qhov ntev no yuav loj heev. Ntawm 90 degrees peb yuav tsum hais tias lub tangent yog undefined (und), vim thaum koj faib ob txhais ceg rov qab los ntawm ceg nyob ib sab koj tsis tuaj yeem faib los ntawm xoom
