z95 assume z 0Solutionz95 assume z 0 use expoenet property x

(z^-9)^5 assume z= 0

Solution

(z^-9)^5 assume z= 0

use expoenet property: (x^a)^b = a^ab

So, z^-45 when z=0

z^-45 = (0)^-45=0