Answer :
it can be written as [tex] \frac{ 4^{3} }{ 3^{2} } [/tex] now it can be easily evaluated
[tex] \frac{64}{9} [/tex]
[tex] \frac{64}{9} [/tex]
When you take denominator value to numerator the power value becomes plus and same for numerator.
Therefore, 3^-2/4^-3 = 4^3/3^2 = 64/9
Therefore, 3^-2/4^-3 = 4^3/3^2 = 64/9