$\"\"$

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The limit expression is $\"\"$ where $\"\"$ .

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Find left hand side limit $\"\"$ .

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If the value of $\"\"$ is less than $\"\"$ then $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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Find right hand side limit $\"\"$ .

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If the value of $\"\"$ is greater than $\"\"$ then $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Since the left hand side limit is equal to the right hand side limit, the limit exists.

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Therefore, $\"\"$ .

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$\"\"$

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$\"\"$ .