Determinant and Inverse of Matrices
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the inverse of the matrix A=
⌈3 0⌉
⌊0 2⌋
*Inverse=
¹∕detA × ⌈d −b⌉ ⌊−c a⌋
[1/2 0]
[0 1/3]
[-3 0]
[0 -2]
⌈1/3 0⌉
⌊0 1/2⌋
[2 0]
[0 3]
Tags
CCSS.HSA.REI.C.9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Are A and B inverses?
A = ⌈3 -10⌉
⌊1 4⌋
B = ⌈2/11 5/11⌉
⌊-1/22 3/22⌋
*AB=I
Yes
No
Tags
CCSS.HSA.REI.C.9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following matrices has an inverse of ⌈−⅗ ⅘⌉
⌊⅖ −⅕⌋ ?
*det = -5
⌈1 2⌉
⌊3 4⌋
⌈1 3⌉
⌊2 4⌋
⌈1 4⌉
⌊2 3⌋
⌈−3 4⌉
⌊2 −1⌋
Tags
CCSS.HSA.REI.C.9
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for the determinant of the following matrix:
⌈12 −3⌉
⌊−6 15⌋
*detA= ad-bc
198
162
-333
-9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Evaluate the determinant of the matrix.
-21
0
9
12
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Evaluate the determinant of the matrix.
-21
0
9
12
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine if the matrix has an inverse, if so find it.
No
0 1
-1 2
-1 3
1 -2
2 -1
-1 1
Tags
CCSS.HSA.REI.C.9
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