$\"\"$

The expression is 4n = 1

Multiplicative Inverse: For every number $\"\"$ , where $\"\"$ there is exactly one

number $\"\"$ such that the product of $\"\"$ and $\"\"$ is 1; i.e. $\"\"$ .

$\"\"$ , since $\"\"$ .This is the multiplicative inverse property. $\"\"$

The value of $\"\"$ .

The property used is Multiplicative Inverse Property.