Puas yog qhov kev xav pom tau daws tau?

Cov txheej txheem:

Puas yog qhov kev xav pom tau daws tau?
Puas yog qhov kev xav pom tau daws tau?
Anonim

nqi zog. Rau ib daim ntawv pov thawj los yog piv txwv, banker Andrew Beal pib muab khoom plig ntawm US $ 5, 000 hauv xyoo 1997, nce rau $ 50, 000 tshaj kaum xyoo, tab sis txij li ntawd tau tsa nws mus rau US $ 1,000, 000. Lub Koom Haum American Mathematical Society (AMS) tuav tus nqi zog $ 1 lab nyob rau hauv kev ntseeg siab kom txog thaum Beal conjecture raug daws.

Puas yog qhov kev txiav txim siab Beal tau daws lawm?

Andrew Beal, tus tswv lag luam thiab tus neeg nyiam ua lej, tau muab $ 1 lab rau txhua tus neeg uas tuaj yeem nrhiav tau cov pov thawj rau tus lej-txoj kev xav txog kev xav uas coj nws lub npe. Tsuas yog ib qho ntawm teeb meem tau daws rau hnub no, tab sis tus txiv neej uas daws tsis kam lees txais qhov khoom plig. …

Cov pov thawj Beal Conjecture yog dab tsi?

Beal qhov kev xav yog kev nthuav dav ntawm Fermat's Last Theorem. Nws hais tias: Yog A x + By=Cz, qhov twg A, B, C, x, y thiab z yog cov lej zoo thiab x, y thiab z yog tag nrho ntau dua 2, ces A, B thiab C yuav tsum muaj qhov tseem ceeb tshaj plaws.

Puas muaj teeb meem lej uas tsis tau daws tau?

Lub Birch thiab Swinnerton-Dyer Conjecture yog lwm qhov ntawm rau qhov tsis tau daws qhov teeb meem xyoo txhiab xyoo, thiab nws tsuas yog ib qho uas peb tuaj yeem piav qhia hauv lus Askiv dawb. Qhov kev xav no suav nrog cov lej lej hu ua Elliptic Curves. … Hauv qhov tseeb, qhov nkhaus elliptic yog ib hom haujlwm tshwj xeeb.

Dab tsi yog kev xav?

kev tsim lossis nthuav tawm kev xav lossis kev xav yam tsis muaj pov thawj txausrau proof. ib qho kev xav lossis kev xav tau tsim los yog nthuav tawm; twv; kev kwv yees. los ua conjectures. …

Pom zoo:

Nthuav cov khoom
Puas talcum hmoov yaj hauv dej?
Nyeem ntxiv

Puas talcum hmoov yaj hauv dej?

Talc yog xyaum insoluble hauv dej, dilute ntxhia acids, thiab dilute daws ntawm alkali halides thiab alkaline hydroxides. Nws yog soluble hauv kub concentrated phosphoric acid. Vim li cas talcum hmoov tsis yaj hauv dej? Tsim Hauv Tsev.

Vim li cas thiaj siv schlieren photography?
Nyeem ntxiv

Vim li cas thiaj siv schlieren photography?

Schlieren kev yees duab yog txheej txheem pom kev uas yog siv los yees duab cov dej ntws ntawm qhov sib txawv. Tsim los ntawm German physicist lub yim hli ntuj Toepler nyob rau hauv 1864 los kawm supersonic motion, nws yog dav siv nyob rau hauv aeronautical engineering los yees duab cov ntws ntawm huab cua nyob ib ncig ntawm cov khoom.

Yuav rov hais dua email li cas?
Nyeem ntxiv

Yuav rov hais dua email li cas?

Koj tuaj yeem sim: "Kuv tab tom ua raws li hauv qab no" lossis "Ua raws li qhov no [thov / nug / haujlwm]" "Kuv rov qab rau hauv qab no" lossis "Circling rov qab rau ntawm no [thov / nug / assignment]