$\"\"$

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The sequence is $\"\"$ .

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Calculate the first $\"\"$ terms of the sequence :

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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If $\"\"$ then $\"\"$ .

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The first $\"\"$ terms of the sequence is $\"\"$ .

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$\"\"$

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Graph :

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(1) Draw the coordinate plane.

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(2) Graph the sequence $\"\"$ indicate the first $\"\"$ terms of the sequence. $\"\"$

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Observe the graph :

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The graph is diverges.

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The sequence $\"\"$ is divergent. \ \

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Therefore, $\"\"$ does not exist. \ \

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$\"\"$

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Graph of the first ten terms of the sequence $\"\"$ is \ \

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$\"\"$

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The sequence $\"\"$ is diverges.