$\"\"$

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The function is $\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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From Chain rule of derivative: $\"\"$ .

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$\"\"$

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$\"\"$

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To find the crititcal poins of the function evaluate $\"\"$ .

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$\"\"$

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Therefore $\"\"$ or $\"\"$ .

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For $\"\"$ ,there is no critical points.

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For $\"\"$ the solutions are $\"\"$ and $\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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The extrema points are $\"\"$ .

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Hence the statment is False.

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$\"\"$

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The statment is False.