Determine the number of circular permutations of {0,1,2,..,9} in which 0 and 9 are not opposite. (Hint: count those in which 0 and 9 are opposite.)
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Originally Posted by lacy1104 Determine the number of circular permutations of {0,1,2,..,9} in which 0 and 9 are not opposite. (Hint: count those in which 0 and 9 are opposite.) There are $\displaystyle 8!$ circular permutations of {0,1,2,..,9} in which 0 and 9 are opposite.
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