Let A be a 3 x 3 matrix with determinant equal to 4. 4 -8 If the adjoint of A is equal to 12 -4 8 then A-1 is equal to -41 8 [1 -2 3 -1 [2 [1 -2 6 -2 [4 4 -1. -2] the above matrix O the above matrix [2 -4 6. -2 4 [4 -2 None of the mentioned O the above matrix

Let A be a 3 x 3 matrix with determinant equal to 4. 4 -8 If the adjoint of A is equal to 12 -4 8 then A-1 is equal to -41 8 [1 -2 3 -1 [2 [1 -2 6 -2 [4 4 -1. -2] the above matrix O the above matrix [2 -4 6. -2 4 [4 -2 None of the mentioned O the above matrix

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section: Chapter Questions

Problem 20CT

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Question

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Let A be a 3 x 3 matrix with determinant equal to 4.
4
-8
If the adjoint of A is equal to 12
then A-1 is equal to
-4
8.
8
-4
1.
-2
[1
-2
-1
6.
14
-2
4
[2
-1
-21
O the above matrix
O the above matrix
-4
-2
4
4
-2
None of the mentioned
O the above matrix
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4.
144
8A
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264

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