Theorem theorem ndi umboni wake

Tonsefe tinakhala maola ochuluka kuyesa kuthetsa mavuto amodzi a geometry. Inde, funso limayamba: nchifukwa ninji mumayenera kuphunzira masamu konse? Funsoli ndilofunika kwambiri pa geometry, zomwe kudziwa, ngati zothandiza, ndizosawerengeka. Koma masamu ali ndi msonkhano kwa iwo omwe sangakhale antchito a sayansi yeniyeni. Zimapangitsa munthu kugwira ntchito ndikukula.

Cholinga choyambirira cha masamu sichinapereke ophunzira kuti adziwe nkhaniyi. Aphunzitsi amadziika okha cholinga chophunzitsa ana kuganiza, kulingalira, kufufuza ndi kutsutsana. Izi ndi zomwe timapeza mu geometry ndi machaputala ake ambiri, maulendo ndi zizindikiro.

The cosm theorem

Panthawi imodzimodziyo ndi ntchito zosiyana siyana ndi zosiyana za algebra, timayamba kuphunzira maulendo, tanthauzo lake, ndi malo awo. Theorem yotchedwa cosine ndi imodzi mwa njira zoyambirira zomwe zimagwirizanitsa mbali zonse za sayansi ya masamu kumvetsa kwa wophunzirayo.

Kuti mupeze mbaliyo pambali ina iwiri ndi pangodya pakati pawo, thethem ya cosine imagwiritsidwa ntchito. Kwa katatu kakang'ono komwe kali ndi ngodya yolondola, chiphunzitso cha Pythagorean chimatigwirizanitsa, koma ngati tikulankhula za munthu wosasinthasintha, ndiye kuti sangagwiritsidwe ntchito pano.

Chilengedwe cha cosine chili motere:

AC ² = AB ² + BC ² - 2 * AB * BC * Cos

Mbali imodzi ya mbali imodzi ndi yofanana ndi chiwerengero cha mbali ziwiri zomwe zimagwidwa pamtunda, zomwe zimapangidwa ndi kuchulukana ndi ziwiri ndi cosine zazing'ono zomwe anapanga.

Ngati mumayang'ana mozama, chiganizochi chikufanana ndi theorem ya Pythagoras. Inde, ngati titafika pakati pa miyendo yofanana ndi 90, mtengo wa cosine udzakhala 0. Zotsatira zake, ndizowerengeka zokhazokhazo zomwe zidzatsalira, zomwe zikuwonetsedwanso ndi thethm ya Pythagorean.

The cosm theorem: Umboni.

Kuchokera m'mawu awa timapeza njira AC ² ndikupeza:

AC ² = BC ² + AB ² - 2 * AB * BC * cos

Motero, tikuwona kuti mawuwo akugwirizana ndi ndondomeko yomwe ili pamwambayi, yomwe imasonyeza choonadi chake. Tinganene kuti theorem ya cosine imatsimikiziridwa. Amagwiritsidwa ntchito pa mitundu yonse ya katatu.

Gwiritsani ntchito

Kuphatikiza pa maphunziro mu masamu ndi fizikiya, chiphunzitsochi chikugwiritsidwa ntchito kwambiri mmakonzedwe ndi kumanga, kuwerengera mbali ndi ma angle oyenera. Ndi chithandizo chake muzindikire kukula kwa nyumbayo ndi chiwerengero cha zipangizo zomwe zidzafunikire kukonzekera. Zoonadi, zambiri zomwe poyamba zinkafuna kuti anthu azigwira nawo ntchito molunjika ndi chidziwitso ndizokhazikika kuti zitheke. Pali mapulogalamu ambiri omwe amakulolani kuti muwonetse ntchito zomwezo pa kompyuta yanu. Mapulogalamu awo amachitikanso kuganizira malamulo onse a masamu, katundu ndi mayendedwe.

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