Find the products AB and BA to determine whether B is the multiplicative inverse

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Qnja46550

Mathematics

Question Description

Find the products AB and BA to determine whether B is the multiplicative inverse of A.

A= 0, 1, 0

 0, 0, 1

  1, 0, 0

B= 0, 0,1

 1, 0, 0

  0, 1, 0

A. AB = I; BA = I3; B = A

B. AB = I3; BA = I3; B = A-1

C. AB = I; AB = I3; B = A-1

D. AB = I3; BA = I3; A = B-1

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Explanation & Answer

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AB=

BA=

So correct choice is D. AB = I3; BA = I3; A = B^(-1)

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ynhtuvat_ohqqun (500)
University of Maryland

Anonymous
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