What is the number of arrangements in the word "DAUGHTER" where vowels are never together? – math.stackexchange.com

What is the number of arrangements in the word "DAUGHTER" where vowels are never together? – math.stackexchange.com

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My approach: Let us suppose any two of the vowels be one letter. So, total no. of letters becomes 7. Again, the vowels will change position among themselves. Therefore, total no of permutation where ...

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