Question

Which term of the sequence 18,-12, 8, is 512/729

Answer 1

Answer:

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Step-by-step explanation:

18,−12,8

=729512=term

Nth term of GP=arn−1

⇒729512=18(18−12)n−1

⇒729512=18(3−2)n−1

⇒2828=9×9×9×9256=(3−2)n−1

⇒n−1=8

⇒n=9