$\"\"$

The function is $\"\"$ .

Show that $\"\"$ .

$\"\"$ .

Apply logarithm change of base rule property : $\"\"$ .

$\"\"$ .

Then $\"\"$

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

$\"\"$

Apply logarithm change of base rule property : $\"\"$ .

Therefore, $\"\"$ .

$\"\"$

$\"\"$ .