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Math Help - How to find the total number of unique three-letter arrangements for this word?

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    How to find the total number of unique three-letter arrangements for this word?

    How do i determine the total number of unique three-letter arrangements that are possible using the letters in the word "believe"?
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    Re: How to find the total number of unique three-letter arrangements for this word?

    Quote Originally Posted by thegameplayer View Post
    How do i determine the total number of unique three-letter arrangements that are possible using the letters in the word "believe"?
    There is one string with all e^\ís: eee

    Look at the collection \{b,e,l,i,v\}, how many three letters strings of distinct letters from that set are there?

    Look at the collection \{b,l,i,v\}, how many three letters strings with one leter from that set with two e^ís are there?
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