-1 -1 3 Suppose that A= -1 4 2 and B = 1 7 -2 are strictly diagonally dominant 3x3 matrices. 2 2 8. 9,

College Algebra (MindTap Course List)
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Chapter6: Linear Systems
Section6.5: Determinants
Problem 84E
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EXERCISE 1

Based on the image attached, solve the following question.

a) Identify A + B is strictly diagonally dominant or not. 

b) Identify A - B is strictly diagonally dominant or not. 

2
-1
9.
-1
3
Suppose that A= -1
4
2 and B= 1
7
-2 are strictly diagonally dominant 3×3 matrices.
2
2
8.
Transcribed Image Text:2 -1 9. -1 3 Suppose that A= -1 4 2 and B= 1 7 -2 are strictly diagonally dominant 3×3 matrices. 2 2 8.
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