1. The problem statement, all variables and given/known data Show the proof that the following are all Normal Matrices a. Hermitian b. Skew Hermitian c. Unitary 2. Relevant equations Normal Matrices: A*A=AA* Hermitian Matrices: A=A* or aij=a*ji Skew Hermitian Matrices A=-A* or aij=-a*ji 3. The attempt at a solution So far I have tried using the above information for Hermitian Matrices to try and prove that A*A=AA* but I keep getting answers I know not to be correct. I would appriciate a nudge in the correct direction so I can quit pulling my hair out. I have a feeling when I find the correct proof it will be quite obvious, but right now I am just missing something.