Elementary Linear Algebra 8th Edition Larson Test Bank
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Chapter 2 - Matrices
1. If possible, find
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
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2. Use the following matrices to perform the indicated matrix operations, if possible. ,
ANSWER: c
POINTS: 1
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,
a.
b.
c.
d.
e. not possible
a.
b.
c.
d.
e.
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Chapter 2 - Matrices
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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3. Find .
ANSWER: d
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QUESTION TYPE: Multiple Choice
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4. If possible, find .
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,
a.
b.
c.
d.
e.
,
a.
b.
not possible
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
DATE MODIFIED: 1/21/2016 10:52 AM
5. Use the following matrices to perform the indicated matrix operations, if possible. ,
ANSWER: e
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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6. Use the following matrices to perform the indicated matrix operations, if possible.
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Chapter 2 - Matrices
3
c.
d.
e.
a.
b.
c.
d.
e.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
DATE MODIFIED: 1/21/2016 10:52 AM
7. Use the matrices to find CD, if possible.
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Chapter 2 - Matrices
4 ,
a.
b.
c.
d.
e.
,
a.
b.
c.
d.
Chapter 2 - Matrices
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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8. Use the matrices below. Perform the indicated operation.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
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9. Use the matrices below. Perform the indicated operations. BA
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e.
,
AB
a.
b.
c.
d.
e.
Chapter 2 - Matrices
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
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DATE CREATED: 1/21/2016 10:52 AM
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10. Multiply the matrices.
ANSWER: e
POINTS: 1
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,
a.
b.
c.
d.
e.
a.
b.
c.
d.
e.
Chapter 2 - Matrices
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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11. Indicate whether the statement "If A is a matrix and B is a matrix, then the product is a matrix." is true or false.
ANSWER: b
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QUESTION TYPE: Multiple Choice
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12. Solve for X when and
ANSWER: e
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QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
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a.
b.
a.
b.
c.
d.
e.
Chapter 2 - Matrices
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13. Find B(CA), provided that , ,
ANSWER: c
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QUESTION TYPE: Multiple Choice
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14. Find (B+C)A, provided that , ,
ANSWER: a
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QUESTION TYPE: Multiple Choice
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a.
b.
c.
d.
e.
a.
b.
c.
d.
e.
Chapter 2 - Matrices
HAS VARIABLES: True
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15. Find (Note: A2 = AA.)
not possible
ANSWER: a
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16. Find if
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a.
b.
c.
d.
e.
a.
b.
c.
d.
e.
Chapter 2 - Matrices
ANSWER: d
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QUESTION TYPE: Multiple Choice
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17. Write the transpose of matrix A
ANSWER: d
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QUESTION TYPE: Multiple Choice
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18. Find (AB) if and
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a.
b.
c.
d.
e.
a.
ANSWER: b
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19. Consider the matrices , , Find scalars a and b such that
ANSWER: e
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20. Use the provided definition to find f(A): If f is the polynomial function, , then for an matrix A, f(A) is defined to be
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2
Chapter
- Matrices
b.
c.
d.
e.
a.
b.
c.
d.
e.
Given that ,
ANSWER: c
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QUESTION TYPE: Multiple Choice
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21. If and , are C and D inverse matrices?
a. Yes
b. No
ANSWER: a
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22. Find the inverse matrix, if one exists.
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Chapter 2 - Matrices
a.
b.
c.
d.
e.
a.
b.
c.
Chapter 2 - Matrices
e. no inverse exists
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
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ANSWER: b
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QUESTION TYPE: Multiple Choice
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. Find A-1 the inverse
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d.
23. Find the inverse of the matrix
a.
b.
c.
d.
e.
24. Given matrix
matrix.
a.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
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ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
DATE MODIFIED: 2/1/2016 5:42 AM
2 -
Chapter
Matrices
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b.
c.
d.
e.
25.
a. –1
b. 0
c.
d.
ANSWER: a
POINTS: 1
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HAS VARIABLES: True
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Chapter 2 - Matrices
26. Find the inverse of the matrix .
a. b.
c.
d. e.
27. Given that matrix Find the inverse matrix.
a. b.
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
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DATE CREATED: 1/21/2016 10:52 AM
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28. Use inverse matrices to solve the system of linear equations.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
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29. Use inverse matrices to solve the system of linear equations.
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2
Chapter
- Matrices
c.
d.
e.
a.
b.
c.
d.
e.
a.
b.
Chapter 2 - Matrices
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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30. Use inverse matrices and the graphing calculator to find the solution of the system of equations.
ANSWER: e
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c.
d.
e.
a.
b.
c.
d.
e.
31. Let , . Find an elementary matrix E such that .
ANSWER: a
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QUESTION TYPE: Multiple Choice
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32. Let , . Find an elementary matrix E such that .
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Chapter 2 - Matrices
a.
b.
c.
d.
e.
a.
b.
c.
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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33. Find the inverse of the elementary matrix
ANSWER: e
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QUESTION TYPE: Multiple Choice
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Chapter 2 - Matrices
d.
e.
a.
b.
c.
d.
e.
Elementary Linear Algebra 8th Edition Larson Test Bank
Full Download: http://testbanktip.com/download/elementary-linear-algebra-8th-edition-larson-test-bank/
Chapter 2 - Matrices
34. Find the inverse of the matrix
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
DATE CREATED: 1/21/2016 10:52 AM
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35. Find the inverse of the matrix using elementary matrices.
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a.
b.
c.
d.
e.
a.
b.
c.
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