Answer: (2, 1).
- A (2, 1)
- B (1, 2)
- C (3, 0)
- D (2, −1)
Correct answer: A. (2, 1)
Explanation: The determinants give x = 2 and y = 1.
Concept context
Evaluation of determinants, cofactors, adjoint, inverse of matrix, Cramer's rule and area applications. Always in board and JEE.