
Understanding Determinants of 3x3 Matrices

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned

Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial step in finding the determinant of a 3x3 matrix?
Transpose the matrix
Calculate the inverse
Apply the checkerboard pattern
Identify the matrix elements
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What pattern is used to determine the signs in the determinant calculation?
Alternating pattern
Checkerboard pattern
Symmetric pattern
Diagonal pattern
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you form a submatrix for determinant calculation?
By transposing the matrix
By removing a row and a column
By adding rows and columns
By multiplying rows and columns
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the first term's determinant calculation?
10
0
6
4
Tags
CCSS.7.NS.A.1B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the negative sign handled in the second term calculation?
It is subtracted from the result
It is ignored
It is multiplied by -1
It is added to the result
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the determinant of a submatrix with elements 5, 3, 0, 0?
5
10
15
0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final value of the determinant after all calculations?
16
6
10
0
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