Elementary Linear Algebra (MindTap Course List)
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN: 9781305658004
Author: Ron Larson
Publisher: Cengage Learning
Question
-2-6-28
Let A =
3
5
18
1
2
9
1
Find the third column of A without computing the other two columns.
How can the third column of Abe found without computing the other columns?
A. Solve the equation Aе3 = b for e3, where e3 is the third column of 13 and b is the third column of A¹.
B. Row reduce the augmented matrix [A I3].
C. Row reduce the augmented matrix [A e3], where e3 is the third column of 13.
A
OD. Row reduce the augmented matrix
where ez is the third row of I3.
ез
The third column of A¹ is
(Type an integer or decimal for each matrix element.)
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Transcribed Image Text:-2-6-28 Let A = 3 5 18 1 2 9 1 Find the third column of A without computing the other two columns. How can the third column of Abe found without computing the other columns? A. Solve the equation Aе3 = b for e3, where e3 is the third column of 13 and b is the third column of A¹. B. Row reduce the augmented matrix [A I3]. C. Row reduce the augmented matrix [A e3], where e3 is the third column of 13. A OD. Row reduce the augmented matrix where ez is the third row of I3. ез The third column of A¹ is (Type an integer or decimal for each matrix element.)
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