SOLUTION: if M and N are two matrices such that MN=N and NM=M show that M^2 + N^2= M + N

SOLUTION: if M and N are two matrices such that MN=N and NM=M show that M^2 + N^2= M + N

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Question 836819: if M and N are two matrices such that MN=N and NM=M show that M^2 + N^2= M + N
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!

Similarly,

Therefore

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