$\"\"$

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The statement is If $\"\"$ then $\"\"$ .

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The statement is true.

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Proof :

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The function is $\"\"$ .

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Differentiate with respect to $\"\"$ .

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$\"\"$

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Power rule of derivatives: $\"\"$ , where $\"\"$ .

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$\"\"$

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$\"\"$ . \ \

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$\"\"$

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The statement is true.