SOLUTION: If A is a 5 × 5 matrix, then AI^-1 =
a. A^-1
b. I
c. A
d. A^-1 I
Algebra.Com
Question 156061: If A is a 5 × 5 matrix, then AI^-1 =
a. A^-1
b. I
c. A
d. A^-1 I
Answer by dave41082(4) (Show Source): You can put this solution on YOUR website!
Since I = I^-1, you simply have AI, and we know any matrix multiplied by I equals itself.
So the answer is A.
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