Question: Answer problems a to c true or false, and give a brief explanation or counterexample. a. If A is a square matrix, then Ker(A2) =

Answer problems a to c true or false, and give a brief explanation or counterexample.
a. If A is a square matrix, then Ker(A2) = Ker{A). True or false?
b. If A is a square matrix, then Im(A2) = Im(A). True or false?
c. If A is a square matrix, then Ker(A) = Ker(RREF). True or false?

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