How many 10 letter words are there in which each of the letters contain a,v,i,k
1) at most once??
2)at least once??
to the admin: do i need to download any software to use latex? i cant make it.(sorry and will remain grateful if you please again do give the instruction )
the arrivals
Search found 41 matches
- Thu Dec 23, 2010 12:04 pm
- Forum: Combinatorics
- Topic: digit problem
- Replies: 8
- Views: 5854