b) Is matrix B an inverse of matrix A? Show the work to justify your answer.CHINT: Multiply AB and see if it gives an I matrix. If it is then, B is inverse of Aelse it is NOT.)В %3-37 -333A =1 0-114 321 3-1 0 1c) Solve x based on the value of Determinant:6х20= -4213Answer: -2/9, 11XX

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Asked Dec 2, 2019
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b) Is matrix B an inverse of matrix A? Show the work to justify your answer.
CHINT: Multiply AB and see if it gives an I matrix. If it is then, B is inverse of A
else it is NOT.)
В %3
-3
7 -3
3
3
A =
1 0
-1
1
4 3
2
1 3
-1 0 1
c) Solve x based on the value of Determinant:
6х
2
0
= -4
2
1
3
Answer: -2/9, 1
1
X
X
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b) Is matrix B an inverse of matrix A? Show the work to justify your answer. CHINT: Multiply AB and see if it gives an I matrix. If it is then, B is inverse of A else it is NOT.) В %3 -3 7 -3 3 3 A = 1 0 -1 1 4 3 2 1 3 -1 0 1 c) Solve x based on the value of Determinant: 6х 2 0 = -4 2 1 3 Answer: -2/9, 1 1 X X

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Expert Answer

Step 1

“Hey, since there are multiple questions posted, we will answer first question  (b). If you want any specific question to be answered then please submit that question only or specify the question number in your message.

The given matrices are,

1 3 3
-3 -3
7
0and B 4 3
-1 1
-1
0
1
1 3
2
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1 3 3 -3 -3 7 0and B 4 3 -1 1 -1 0 1 1 3 2

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Step 2

Multiply the matrices A and B...

-3 -3 1 3 3
7
АВ - -1
01 4 3
1
1
1 3 2
-1
0
21-12-9 21-9-6
7 3-3
-1+1+0
-3 + 4 +0
-3 3 +0
-3+0+3 -3+0+2
-1+0 1
1 0 6
0 1
0
0 0-1
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-3 -3 1 3 3 7 АВ - -1 01 4 3 1 1 1 3 2 -1 0 21-12-9 21-9-6 7 3-3 -1+1+0 -3 + 4 +0 -3 3 +0 -3+0+3 -3+0+2 -1+0 1 1 0 6 0 1 0 0 0-1

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