$\"\"$

The logarithmic expression is $\"\"$ .

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

$\"\"$

Apply power property of natural logarithmic : $\"\"$ .

$\"\"$ (The value of ln e = 1)

$\"\"$ (Using the calculator: $\"\"$ )

$\"\"$ .

$\"\"$

The simplified expression is $\"\"$ .