$\"\"$

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The function is $\"\"$ on interval $\"\"$ .

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Mean Value Theorem:

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If $\"\"$ is continuous on closed interval $\"\"$ , then there exists a number $\"\"$ in the closed interval $\"\"$ such that $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ . $\"\"$

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Find the value of $\"\"$ .

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$\"\"$

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Substitute $\"\"$ .

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$\"\"$

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The solutions of equation $\"\"$ are $\"\"$ .

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The solutions of equation $\"\"$ .

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In this case $\"\"$ and $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .