Math, asked by whorahulnayak, 4 months ago

how many derangements of 1,2,3,4,5,6 where the first three numbers are in some order

Answers

Answered by tanmayshukla070
1

Answer:

first three 1,2,3 must remain in rhe same order so we have to arrange only 4,5,6 which is 3!

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