Yuav ua li cas koj xam tus naj npawb ntawm qhov tshwm sim?
Yuav ua li cas koj xam tus naj npawb ntawm qhov tshwm sim?

Video: Yuav ua li cas koj xam tus naj npawb ntawm qhov tshwm sim?

Video: Yuav ua li cas koj xam tus naj npawb ntawm qhov tshwm sim?
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Kaum ib hlis
Anonim

Lub hauv paus ntsiab lus suav yog thawj txoj cai rau xam cov naj npawb ntawm qhov tshwm sim tau . Yog tias muaj p possibilities rau ib qho kev tshwm sim thiab q possibilities rau ib qhov kev tshwm sim thib ob, ces tus tus lej ntawm possibilities rau ob qhov xwm txheej yog p x q.

Ntxiv mus, koj yuav ua li cas thiaj nrhiav tau cov txiaj ntsig tau?

Tag nrho tus naj npawb ntawm qhov tshwm sim tau yog 6, 3 ∙ 2 = 6. Lub hauv paus ntsiab lus no hu ua lub hauv paus ntsiab lus suav thiab txoj cai yog raws li nram no. Yog tias qhov xwm txheej x (qhov no yog nqaij qaib, nqaij nyug thiab zaub) tuaj yeem tshwm sim hauv x. Thiab qhov xwm txheej y (qhov no Fabkis fries lossis qos yaj ywm mashed) tuaj yeem tshwm sim hauv y txoj kev.

Tsis tas li, muaj pes tsawg qhov sib xyaw ntawm 4 yam khoom muaj? nyob ntawd yog 4 yam , yog li tag nrho cov muaj peev xwm kev sib xyaws tias lawv tuaj yeem npaj rau hauv yog 4 !

Hauv qhov no, pes tsawg qhov sib txuas ntawm 3 tus lej muaj?

Muaj, koj pom, 3 x 2 x 1 = 6 txoj hauv kev ntawm kev teeb tsa peb tus lej. Yog li ntawd nyob rau hauv cov txheej txheem ntawm 720 muaj peev xwm, txhua qhov tshwj xeeb ua ke ntawm peb tus lej yog sawv cev 6 zaug.

Cov txiaj ntsig tau li cas?

Qhov tshwm sim Ib qhov tshwm sim ntawm qhov kev sim yuav tshwm sim yog ib qho ua tau kawg tshwm sim. Tag nrho Cov txiaj ntsig Hauv qhov tshwm sim, tag nrho qhov tshwm sim yog tus naj npawb tag nrho ua tau rau qhov kev sim yuav tshwm sim.

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