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8 July, 07:17

Write a formula to find the nth term of a geometric sequence - 1/3,1/2,-3/4,9/8

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  1. 8 July, 07:41
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    Step-by-step explanation:

    first term a = - 1/3

    Ratio r = 1/2: (-1/3) = 1/2 * (-3/1) = - 3/2

    nth term = ar^ (n-1)

    = (-1/3) * (-3/2) ^ (n-1)
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