True and False

K

kimmy4110

New member
Joined
Nov 14, 2005
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6
I am confused

Which of the following statements is true?

a. If A and B are square matrices of the same order, then A + B = B + A.
b. If A and B are square matrices of the same order, then AB = BA.
c. All square matrices have inverses. .
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Hint: Think about the discussion in class and in the book about commutativity with matrices. Think about some of the addition, multiplication, and inversion problems you've done.

Eliz.
 
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