Jump to content
wikedx

Intrbare matematica

Recommended Posts

Posted

Salut am si eu o problema care suna in felul urmator:

Am 30 de probleme si fiecare problema are cate 2 variante de raspuns

Cate combinari sunt posibile astfel incat eu sa rezolv toate cele 30 de probleme.

Adica ma refer sa pice corect la toate.

Posted
420

Combinari de n luate cate k

adica combinari de 30 luate cate 2

formula e

n!/(n-k)!*k!

Asta se aplica in cazul in care ai o intrebare cu 30 de raspunsuri din care poti sa alegi 2. "k" trebuie sa reprezinte o submultime de elemente distincte din multimea de 30.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...