$\"\"$

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The logarithm expression is $\"\"$ .

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Apply power property of logarithm : $\"\"$ .

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$\"\"$

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Apply property of logarithm : $\"\"$ .

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$\"\"$

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The value of logarithm expression $\"\"$ is $\"\"$ .

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$\"\"$

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The value of logarithm expression $\"\"$ is $\"\"$ .