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8 January, 05:39

What is the value of the fourth term in a geometric sequence for which a=15 and r = 1/3

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  1. 8 January, 08:25
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    Step-by-step explanation:

    hello:

    the n-ieme term is : An=A1*r^ (n-1)

    A1 the first term r : the common ratio

    in this exercice : A1 = 15 r = 1/3 n = 4

    A4=15 * (1/3) ^ (4) = 15*4^4 = 3840
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