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Questions and Answers
Which of the following is the correct formula for finding the determinant of a 2x2 matrix?
Which of the following is the correct formula for finding the determinant of a 2x2 matrix?
- ab - cd
- ad - bc (correct)
- ac - bd
- bd - ac
What is the result of multiplying a matrix by its inverse?
What is the result of multiplying a matrix by its inverse?
- Matrix becomes singular
- Identity matrix (correct)
- All elements become negative
- Zero matrix
What is the rank of a matrix?
What is the rank of a matrix?
- The maximum number of linearly independent rows or columns (correct)
- The number of rows multiplied by the number of columns
- The determinant of the matrix
- The sum of all elements in the matrix
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