The problem along with its solution are attached as TheProblemAndSolution.jpg. This post's focus is on part (iii), specifically.
z (overlined) = z. (according to book)
z (double overlined) = z. (according to me)
The Attempt at a Solution
I understand the first two parts but, is there a typo in part (iii)? I looked at Wikipedia and I believe that part (iii) intends to say double conjugate of z = z rather than single conjugate of z = z. Am I right in believing that the book I'm using is wrong?
I would really appreciate a confirmation or denial because, I want to make sure that I am not missing something important if I just assume that the book is wrong!
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