\"\"

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The geometric sequence is \"\"

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Find \"\", the first term of the sequence \"\".

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Common ratio \"\", \"\", So \"\".

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Apply nth term \"\" of a geometric sequence formula \"\".

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\"\"         (Substitute \"\")

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\"\"             (Subtract power: \"\")

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\"\"        (Evaluate power: \"\")

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\"\"               (Multiply: \"\")\"\"

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The value of \"\".