JEE Main 2021 Mathematics question
Let A be a 3 × 3 matrix with det(A) = 4. Let denote the row of A. If a matrix B is obtained by performing the operation on 2A, then det(B) is equal to :
Answer: (D)
Let A be a 3 × 3 matrix with det(A) = 4. Let denote the row of A. If a matrix B is obtained by performing the operation on 2A, then det(B) is equal to :