
Understanding and applying determinants
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Mathematics
KG - 12th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the determinant of this matrix? Calculate by hand.
5
-5
0
-12
3.
MULTIPLE CHOICE QUESTION
30 sec • 12 pts
1. which of the following is correct
determinants is a square matrix
determinants is a number associated to a matrix
determinants is a number associated to a square matrix
none of these
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Let A is square matrix of order 3, |𝐴| ≠ 0 𝑎𝑛𝑑 |3𝐴| = 𝑘|𝐴|, then write the value of k.
3
18
9
27
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Evaluate the determinant without a calculator
37
-37
58
-58
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find det (D) for the above system of linear equation in matrix form , D X = d.
80
-80
-40
40
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Let A be a square matrix of order 3x3 then| kA| = .
k |A|
k2|A|
k3|A|
3k|A|
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