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Math: Convergent or Divergent?

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2 Answers

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  • ted s
    Lv 7
    1 week ago
    Favorite Answer

    it is actually " absolutely convergent ".....8 ( 1 / [ 1 + 7/8 ] )

  • 1 week ago

    The series diverges.

    Writing out each term and applying the factor, 8, to each gives:

    1 - 7 + 7^2 - 7^3 + 7^4 - 7^5 +...+ (-7)^k

    This is clearly a geometric series with a ratio of -7.  Since the absolute value of the ratio is not less than 1, the series must diverge.

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