Question

qual é o valor de A?
A=(9^-1×3^-3)^-1×(-1/3)^4

Answer 1

A=3

9^-1 = 1/9
3^-3 = 1/3^3= 1)27

A=(1/9*1/27)^-1 * (-1/3)^4
A= (1/243)^-1 * 1/81
A= 1/1/243 * 1/81
A= 243/81
A=3