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Class XII Mathematics Quiz on Determinants
Class XII
Mathematics
Determinants
12 questions
MEDIUM
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Preview questions
1. What is the determinant of a 2x2 matrix [[a, b], [c, d]]?
ad - bc · ab + cd · ac - bd · a + b + c + d
2. If A is a 3x3 matrix, what is the value of det(kA) where k is a scalar?
k^3 * det(A) · k * det(A) · det(A) · k^2 * det(A)
3. Which of the following properties of determinants states that if two rows of a matrix are identical, the determinant is zero?
Row Replacement · Row Swapping · Row Addition · Row Identity
4. The determinant of a triangular matrix is equal to what?
Sum of diagonal elements · Product of diagonal elements · Difference of diagonal elements · Zero
5. What is the determinant of the identity matrix I of order n?
1 · 0 · n · n!
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