$\"\"$

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The function is $\"\"$ .

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From the definition of limit $\"\"$ .

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$\"\"$

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The value of limit $\"\"$

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$\"\"$

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Given $\"\"$ whenever $\"\"$

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$\"\"$

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Now $\"\"$ .

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$\"\"$

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Hence $\"\"$

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$\"\"$

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The value of limit is $\"\"$ and $\"\"$ .