for the non-nill matrices A and B, which of the following statement is true  A -B = -B +A A-B = B-A  A/B = B/A None of the above

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.CM: Cumulative Review
Problem 29CM
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for the non-nill matrices A and B, which of the following statement is true 

A -B = -B +A

A-B = B-A 

A/B = B/A

None of the above 

Expert Solution
Step 1

Consider the given information.

We will check one by one option.

(a)

A -B = -B +A

The above statement is showing the subtraction of two matrix. Which is always true and the addition of matrix is always  commutative. 

(b)

A-B = B-A 

Step 2

Further simplify the statement.

2A=0A=0

This implies, A is null but A is not a null matrix.

(c)

A/B = B/A

Further simplify the statement.

AB = BAAB-1=BA-1

It may be true for some matrixes but it is not true for all matrix.

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