Evaluate the expression.

[(3^-3)x(3^5)/3^-2]^-1/2

((3^-3 * 3^5)/3^-2)^-1/2

((1/3^3 * 243)/(1/3^2))^-1/2
((1/27 * 243)/(1/9))^-1/2
((243/27)/(1/9))^-1/2
(9/(1/9))^-1/2
81^-1/2
1/(sqrt81) = 1/9