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Math Help - find the nth term

  1. #1
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    find the nth term

    Find the nth term of the geometric sequence with first term -2 and common ratio 1/3.
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  2. #2
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    What's the n-th term of a geometric sequence given by?
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  3. #3
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    well if it is a geometric series with common ratio 1/3 then to obtain the next term from the one you have you multiply by 1/3 so if your first term is -2 you multiply this by 1/3 to get the next term and so on so the n-th term is equal to the first term ( -2) multiplied by 1/3 n times which equal (1/3)^n
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  4. #4
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    Quote Originally Posted by kenzie103109 View Post
    Find the nth term of the geometric sequence with first term -2 and common ratio 1/3.
    Use your textbook to find the general formula and insert your given values.

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    Then looky here!
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