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NTS - NAT IE Test - Maths - Matrices and Determinants - Quiz 3

Practice 10 high yield MCQs on Maths from Chapter Matrices and Determinants for NAT IE Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 3 of the series.

21. What is AA⁻¹?



22. What is the inverse of [[1,2],[3,4]]?



23. What is (A⁻¹)⁻¹?



24. What is Cramer's rule used for?



25. What is the determinant of the coefficient matrix for 2x + y = 5, x - y = 1?



26. What is the formula for x in Cramer's rule?



27. What is a consistent system?



28. What is an inconsistent system?



29. What is true about a homogeneous system Ax = 0?



30. What is the rank of a matrix?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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