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0 votes
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in Linear Equations by (55.0k points)
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If A and B are square matrices of the same order then (A + B)2 =? 

A. A2 + 2AB + B2 

B. A2 + AB + BA + B2 

C. A2 + 2BA + B2 

D. none of these

1 Answer

+1 vote
by (49.9k points)
selected by
 
Best answer

Since A and B are square matrices of same order. 

(A + B)2 = (A+ B)(A + B) 

= A2 + AB + BA+ B2

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