$\"\"$

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The function is $\"\"$ .

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Find the relative extrema and inflection points.

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$\"\"$

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

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$\"\"$

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Find the critical extrema by equating $\"\"$ to zero.

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$\"\"$

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$\"\"$

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$\"\"$

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

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$\"\"$

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Find the inflection points by equating $\"\"$ to zero.

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$\"\"$

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Therefore inflection point $\"\"$ is the midway between the relative extremas $\"\"$ and $\"\"$ .

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$\"\"$

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Inflection point $\"\"$ is the midway between the relative extremas $\"\"$ and $\"\"$ .