$\"\"$

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The sequence is $\"\"$ .

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(a) Find the first five terms of the sequence.

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$

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(b)

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Write a recursion formula for $\"\"$ , $\"\"$ .

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The recursive formula is $\"\"$ , $\"\"$ , $\"\"$ .

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$\"\"$

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(c) Find $\"\"$ .

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