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Rightlet A be a non singular matrix. then \(A^2=A, \quad A^{-1}A^2=A^{-1}A, \quad IA=I, \quad A=I\)
Why do you write this? $A^2=A$ just by hypothesis.therefore \(A^2=A.\)
i suppose that is redundant or unnecessary. i was not sure if it needs a conclusion with the 'therefore'.Right
Why do you write this? $A^2=A$ just by hypothesis.
The therfore should go before the \(A=I\) and you should stop at that point.i suppose that is redundant or unnecessary. i was not sure if it needs a conclusion with the 'therefore'.