Peb nug tiag tiag "qhov yooj yim tshaj plaws, lub kaum sab xis feem ntau uas muaj secant sib npaug li 2 yog dab tsi?" Raws li ua ntej, cov lus teb yog 60° . Yog li sec-1 2=60° lossis sec-1 2=π/3.
Qhov twg ntawm lub voj voog ntawm chav tsev sec sib npaug 2?
Secant yog qhov sib txuas ntawm cosine (tsis yog sine! yeej tsis sine!), yog li nws yuav sib npaug 2 thaum los yog (plus lossis rho tawm 2π).
secant 2pi yog dab tsi?
2π yog kev sib hloov tag nrho thiaj li hloov nrog 0. Tus nqi tseeb ntawm sec(0) yog 1.
lub kaum sab xis twg muaj 2 secant?
Qhov kev hloov pauv ntawm secant. Lub tswv yim tseem ceeb: Yuav nrhiav sec-1 2, peb nug "lub kaum sab xis twg muaj secant sib npaug rau 2?" Cov lus teb yog 60° . Yog li peb hais tias sec-1 2=60°. Hauv radians no yog sec-1 2=π/3.
Puas secant sib npaug rau 1 tshaj cosine?
Secant ntawm x yog 1 faib los ntawm cosine ntawm x: sec x=1 cos x, thiab cov cosecant ntawm x txhais tau tias yog 1 faib los ntawm x: csc x=1 sin x.
How To Find The Equation of a Secant Line
