we have
[tex]1/[ 3^{-2} x^{-4} y^{2} ][/tex]
Let's substitute the given values of x and y into the expression:
for x=3 and y=-1
[tex]=1/[ (3)^{-2} (3)^{-4} (-1)^{2} ][/tex]
Using the laws of exponents:
[tex]=1/[ (3)^{-2-4}(1) ] \\ = 3^{6} \\ =729[/tex]
the answer is
729
