Tus lej tetrahedral yog dab tsi?

Cov txheej txheem:

Tus lej tetrahedral yog dab tsi?
Tus lej tetrahedral yog dab tsi?
Anonim

Ib tus lej tetrahedral, lossis peb tus lej pyramidal, yog tus lej lej uas sawv cev rau lub pyramid nrog lub hauv paus peb sab thiab peb sab, hu ua tetrahedron.

Koj pom tus lej tetrahedral li cas?

Ib tus lej raug hu ua tus lej tetrahedral yog nws tuaj yeem sawv cev ua lub pyramid nrog lub hauv paus peb sab thiab peb sab , hu ua tetrahedron. Tus nth tus naj npawb tetrahedral yog cov lej ntawm thawj n daim duab peb sab. Thawj kaum tus lej tetrahedral yog: 1, 4, 10, 20, 35, 56, 84, 120, 165, 220, …

Muaj pes tsawg lub ntsej muag muaj tetrahedron?

Hauv geometry, tetrahedron (plural: tetrahedra lossis tetrahedrons), tseem hu ua daim duab peb sab, yog ib lub polyhedron tsim los ntawm plaub daim duab peb sab, rau lub npoo ncaj, thiab plaub vertex cov ces kaum. Lub tetrahedron yog qhov yooj yim tshaj plaws ntawm txhua qhov zoo tib yam convex polyhedra thiab tsuas yog ib qho uas muaj tsawg dua 5 lub ntsej muag.

Is 364 ib daim duab peb sab?

Txhua "txheej" ntawm tetrahedron yog daim duab peb sab ntawm cov dots sawv cev rau peb tus lej: yog li txhua lub tetrahedron yog cov lej ntawm peb tus lej. Tus kaum ob tetrahedral tus lej, 364, qhia peb ntau npaum li cas khoom plig peb tus neeg piav qhia tau txais tag nrho.

Pentelope nab npawb dab tsi?

Tus lej pentatope yog tus lej hauv lub xov tooj thib tsib ntawm ib kab ntawm Pascal daim duab peb sab pib nrog 5-lub sij hawm kab 1 4 6 4 1, los ntawm sab laug mus rau sab xis lossis ntawm sab xis mus rau sab laug. Thawj ob peb tus lej ntawm qhov noyam muaj xws li: 1, 5, 15, 35, 70, 126, 210, 330, 495, 715, 1001, 1365 (ib ntu A000332 hauv OEIS)

Pom zoo:

Nthuav cov khoom
Puas yog daim nqi kho mob thiab coding?
Nyeem ntxiv

Puas yog daim nqi kho mob thiab coding?

billing thiab coding yog cov txheej txheem sib cais, tab sis ob qho tib si tseem ceeb heev kom tau txais kev them nyiaj rau kev kho mob. Kev kho mob coding suav nrog kev rho tawm cov ntaub ntawv sau nqi los ntawm cov ntaub ntawv kho mob thiab cov ntaub ntawv kho mob, thaum cov nqi kho mob siv cov lej no los tsim cov ntawv pov hwm thiab cov nqi them rau cov neeg mob.

Peb puas siv tau rau yav tom ntej?
Nyeem ntxiv

Peb puas siv tau rau yav tom ntej?

Peb siv yuav raws li yav dhau los ntawm kev xav, piav qhia txog kev ntseeg yav tom ntej: Kuv xav tias peb yuav lig, yog li peb yuav tau caij tsheb ciav hlau. Yuav siv tau rau yav tom ntej? Peb muaj qhov no nyob rau yav dhau los, qhov yooj yim yav dhau los tense thiab tom qab ntawd, hauv qhov kev xav yav dhau los, peb muaj qee lub tswv yim txog lub neej yav tom ntej thiab peb siv Xav qhia qhov kev xav txog yav tom ntej.

Mike los ntawm xeb puas muag?
Nyeem ntxiv

Mike los ntawm xeb puas muag?

Txawm li cas los xij, txij li Mike muag nws lub tsheb nkaus xwb, kev muag khoom, koj tuaj yeem tuaj xyuas lub khw, tsuas yog tom qab teem sijhawm ua ntej. Cov Rust Bros tsis xa tsheb thiab lawv tsis muag cov tsheb thiab lawv tsis ua cov haujlwm kho kom rov qab los ntawm lwm tus.