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math30

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Write the first three terms of a geometric sequence that has a first term of a = 7 and a common ratio, r, that satisfies r2 = 9.

  • math30 -

    r^2 = 9
    r = 3 or -3

    terms: 7 21 63 . . .
    or: 7 -21 63 . . .

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