Question

The nth term of a sequence -2,6,-18,54,… is: *​

Answer 1

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• If the first term of the sequence is a and the common ratio is r, then the geometric sequence can be written as

$a \\ ar \\ a {r}^{2} \\ a {r}^{3} \\ ... \\ a {r}^{n - 1}$

Hence

$n \: th \: term =a {r}^{n - 1}$

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Answer 2

Answer:

your answer refer to the attachment