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Assessment
What is the determinant of a 2x2 matrix given by [[a, b], [c, d]]?
ad - bc
ac + bd
ab + cd
bcd - a
Which of the following operations does not change the determinant of a matrix?
Swapping two rows
Multiplying a row by a non-zero scalar
Adding a multiple of one row to another row
None of the above
What is the result of the determinant of the identity matrix of size n?
0
1
n
n! (n factorial)
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