Let the matrix A = bmatrix 0 & 1 & 0 0 & 0 & 1 1 & 0 & 0 bmatrix and the matrix B_ 0 = A^ 49 + 2A^ 98 . If B_ n = Adj(B_ n-1 ) for all n 1, then (B_ 4 ) is equal to :

JEE Main 2022 Mathematics question

Let the matrix A = and the matrix . If for all , then is equal to :

Answer: (C)

, so and . So = , and

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Question ID VK-034789