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For a matrix A of order 3xx3 where A=[(1...

For a matrix A of order `3xx3` where `A=[(1,4,5),(k,8,8k-6),(1+k^2, 8k+4, 2k+21)]` (A) rank of `A=2 for k=-1 (B) rank of `A=1 for k=-1` (C) rank of `A=2 for k=2` (D) rank of A=1 for k=2`

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