$\"\"$

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The logarithmic expression is $\"\"$ .

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Simplify the expression.

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$\"\"$ (Original expression)

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Change of base formula of logarithm: $\"\"$ .

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$\"\"$ (Change of base formula: $\"\"$ )

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$\"\"$ (Use calculator: $\"\"$ and $\"\"$ )

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$\"\"$

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Round off to the nearest ten-thousandth.

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$\"\"$ .

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The value of $\"\"$ .

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$\"\"$

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The value of $\"\"$ .