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Bit string

  1. Jan 20, 2007 #1
    hello

    can some one explain this in details thank u

    a- How many bit strings of length seven either begin with two 0’s or end with three 1’s?
    ]
    b- How many bit strings of length 10 contain either five consecutive 0’s or five consecutive
     
  2. jcsd
  3. Jan 20, 2007 #2
    You need to show some work, but as a hint how many different bit strings are there of arbitrary finite length? How can you modify this to get the number of the strings specified in your post?
     
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