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7 September, 02:02

The first term of a sequence is 4 and the common ratio is - 2. What is the formula for the sequence based on term number

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Answers (2)
  1. 7 September, 02:28
    0
    for sequence

    an=4x (-2) n-1

    for the 20th term

    a20=-2,097,152
  2. 7 September, 04:50
    0
    its B and the next one is C
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