$\"\"$

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The function is $\"\"$ .

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Apply first derivative with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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We find the relative extrema by equating $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Now, substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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So $\"\"$

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The relative extrema point is $\"\"$ .

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$\"\"$

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Determine the relative extrema, using second derivative test.

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$\"\"$

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Apply first derivative with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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So according to second derivative test the function has maximum point at $\"\"$ .

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$\"\"$

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The relative maximum at $\"\"$ .