Posted by Fakaapo. Suetusi on Friday, April 15, 2011 at 5:26am.
Let P=(B-C), and Q=(C-B)
We understand from the definition of subtraction of matrices that P=-Q, or
p(i,j)=-q(i,j).
Let P=
|2 0|
|3 1|
and Q=
|-2 0|
|-3 -1|
and compare P^2 and Q^2 to make your conclusion.
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