\"\"

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The geometric sequence is \"\".

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Find \"\", In the above sequence first term \"\".

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Common ratio, \"\", \"\", So r = 2.

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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 \"\".