JEE Math Practice Question
Let A be a 3 $$\times$$ 3 matrix with det(A) = 4. Let Ri denote the ith row of A. If a matrix B is obtained by performing the operation R2 $$ \to $$ 2R2 + 5R3 on 2A, then det(B) is equal to :
- A.64
- B.16
- C.128
- D.80
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