Find the 10th term of the geometric sequence whose common ratio is 2/3 and whose first term is 7?

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Find the 10th term of the geometric sequence whose common ratio is 2/3 and whose first term is 7?

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  1. Answer:

    let the common ratio and first term be r and a

    therefore, r=2/3 and a=7

    now 10th term of the geometric series can be written as ,

    =ar^9

    = 7 * (2/3)^9

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