1. The problem statement, all variables and given/known data Prove that (z̄ )^k =(z̄ ^k) for every integer k (provided z≠0 when k is negative) 2. Relevant equations 3. The attempt at a solution I let z=a+bi so, z̄ =a-bi Then I plugged that into one side of the equation to get (a-bi)^k I was going to try to manipulate this to get [(a-bi)^k] But I don't know where to go from here, or even what to do..... Please HELP!