Kodi Circle mu precalculus ndi chiyani?
Kodi Circle mu precalculus ndi chiyani?
Anonim

M'mawu a algebra, a kuzungulira ndi seti (kapena "locus") ya mfundo (x, y) pa mtunda wokhazikika r kuchokera kumalo okhazikika (h, k). Mtengo wa r umatchedwa "radius" wakuzungulira, ndipo mfundo (h, k) imatchedwa "pakati" pakuzungulira.

Dziwaninso, tanthauzo la Circle mu masamu ndi chiyani?

(Masamu | | Geometry | Zozungulira) Tanthauzo: A kuzungulira ndi malo a allpoints equidistant kuchokera pakatikati. Matanthauzo Zogwirizana Zozungulira. arc: mzere wokhota womwe uli gawo la kuzungulira kwa a kuzungulira. chord: gawo la mzere mkati mwa akuzungulira zomwe zikukhudza 2 points pakuzungulira.

Komanso, muyezo wa equation wa bwalo ndi chiyani? Mawonekedwe apakati-radius a equation yozungulira ili m'mawonekedwe (x - h)2 + (y-k)2=r2, ndi pakati kukhala pa mfundo (h, k) ndi theradius kukhala "r". Fomu iyi ya equation ndizothandiza, chifukwa mutha kupeza pakati ndi ma radius mosavuta.

Ndiye, gawo la conic la bwalo ndi chiyani?

Monga a gawo la conic, ndi kuzungulira ndi mphambano ya ndege yolunjika ku axis ya cone. Kutanthauzira kwa geometric a kuzungulira ndiye malo a mtunda wokhazikika wa pointa r ​​{displaystyle r} kuchokera pamalo (h, k){displaystyle (h, k)} ndikupanga circumference(C).

Chifukwa chiyani bwalo limatchedwa bwalo?

Mtunda wamba kuchokera pakati pa kuzunguliraku mfundo zake ndi kuyitanidwa utali wozungulira. A kuzungulira ndi planefigure yomwe ili ndi mzere umodzi, womwe ndi kuyitanidwa circumference, ndipo ndi choncho, kuti mizere yonse yowongoka yotengedwa kuchokera kumalo enaake mkati mwa chifaniziro kufika ku circumference, imakhala yofanana wina ndi mzake.

Yotchuka ndi mutu