Multiple Choice Question (MCQ)

Which of the following is a geometric sequence?

  1. 4, -2, 1, -1/2, 1/4, ...

  2. ×

    4, 7, 10, 13, 16, ...

  3. ×

    1, 8, 27, 64, 125, ...

  4. ×

    25, 20, 14, 7, -1, ...

Collected in the board: Geometric sequence

Steven Zheng posted 1 month ago


Answer

  1. 4, -2, 1, -1/2, 1/4, ...

    -2/4 =-1/2

    -1/2

    ...

    The series has a common ratio of -1/2


Steven Zheng posted 1 month ago

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