JEE Math Practice Question
Let A = [aij] and B = [bij] be two 3 × 3 real matrices such that bij = (3)(i+j-2)aji, where i, j = 1, 2, 3. If the determinant of B is 81, then the determinant of A is:
- A.3
- B.$${1 \over 3}$$
- C.$${1 \over 9}$$
- D.$${1 \over {81}}$$
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