Step 1:

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The function $\"\"$

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Average value of the function $\"image\"$ on $\"image\"$ is defined as $\"image\"$ .

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In this case $\"\"$ .

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Average value of $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Step 2:

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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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Solution:

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$\"\"$

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$\"\"$

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