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Thread: Question on Geometric Sequences and Sum to Infinity.

  1. #1
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    Question on Geometric Sequences and Sum to Infinity.

    Question on Geometric Sequences and Sum to Infinity.-img_0094.jpg

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    Hi, is my solution correct? If its wrong could I have some hints thanks.
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  2. #2
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    Re: Question on Geometric Sequences and Sum to Infinity.

    Looks good to me. I can't read your second last line, so not sure what reason you are giving for no sum to infinity.

    You can (and should) always check your own answer. If a = 16 and r=-3/2, check that S(3) = 28 and Sum(6) = -133/2. Then you know whether your a and r are correct or not.
    Thanks from topsquark
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