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5 December, 04:37

Find the 10th term of the following geometric sequence 5/81, 5/27, 5/9, 5/3

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  1. 5 December, 04:39
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    An = a1*r^ (n-1)

    a1 = 5/81

    r=5/27:5/81 = 3

    n=8

    a8 = (5/81) * 3^ (8-1)

    = (5/81) * 3^7

    =5*3^3

    =135
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