A^6 (a^-4)^2 = (1/8)^6 (1/(1/8))^2= (1/8)^6 8^2= 1/8^6 64= 1/262144 * 64= 64/262144= 1/4096
Therefore, A^6 * (a^-4)^2, when a = 1/8, is equal to 1/4096.
A^6 (a^-4)^2 = (1/8)^6 (1/(1/8))^2
= (1/8)^6 8^2
= 1/8^6 64
= 1/262144 * 64
= 64/262144
= 1/4096
Therefore, A^6 * (a^-4)^2, when a = 1/8, is equal to 1/4096.