Question
Word of length 10 are formed using the letters A,B,C,D,E,F,G,H,I,J. Let be the number of such words where no letter is repeated; and let be the number of such words where exactly one letter is repeated twice and no other letter is repeated. The,



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Question Text | Word of length 10 are formed using the letters A,B,C,D,E,F,G,H,I,J. Let be the number of such words where no letter is repeated; and let be the number of such words where exactly one letter is repeated twice and no other letter is repeated. The, |
Answer Type | Video solution: 1 |
Upvotes | 151 |