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Of the Products AB,BA,A2 and B2,which Ones Are Possible for the Given

Question 52

Multiple Choice

Of the products AB,BA,A2 and B2,which ones are possible for the given matrices? A=[1165],B=[5673]A = \left[ \begin{array} { l l } 1 & 1 \\6 & 5\end{array} \right] , B = \left[ \begin{array} { c c } 5 & - 6 \\- 7 & 3\end{array} \right]


A) AB only
B) AB and BA only
C) BA only
D) A2 and B2 only
E) AB,BA,A2 and B2

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