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12 April, 17:03

A geometric sequence with a fifth term of 1/3 and a constant ratio of 1/3

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  1. 12 April, 17:15
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    We know that a 5 = 1/3 and r = 1/3

    a 5 = a 1 * r^4

    1/3 = a 1 * 1/3^4

    1/3 = a 1 * 1/81

    a 1 = 1/3 : 1/81 = 1/3 * 81 = 27

    Answer:

    Geometric sequence is: 27, 9, 3, 1, 1/3, 1/9, 1/27, ...
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