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Let A = [a ij ] = ⎥ ⎦ ⎤ ⎢ ⎣ ⎡ 25 log 8 log 5 log 128 log 4 5 4 5 If A ij is the co-factor of a ij , C ij = ∑ = 2 1 k ik a A jk , 1 ≤ i, j ≤ 2, and C = [C ij ], then 8 |C| is equal to :

1. 262
2. 288
3. 242
4. 222

Correct answer: 242

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