The expression is  .

Method 1:-

For any real number b and for any power of negative integer n, .

For any real number b and for any positive integer n, .

                  (Rewrite: )

Method 2:-

For any real number b and for any power of negative integer n, .

            (Rewrite: )

        (Apply Power of a power property: )

                      (Cancel common terms)

Apply quotient of a power property: .

                                 (Evaluate power: )

The value of the is .