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March 28, 2017

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A sequence has a first term of 24 and every other term is one half of the previous term.

Find a recursive formula that defines this sequence.
The answer of this question is:
an=an-1*1/2
Somebody can help me and let me know why is 1/2 on the formula? please please!!!
I am not sure if the formula is the right one!!

  • math30 - ,

    r = .5
    Just as in your other problem, r in a geometric sequence is the ratio of every term to the one before it. That is the very meaning of a geometric sequence.

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