If M_k= bmatrix k&k-1 -1&k bmatrix where k is a natural number, then what is |M_1|+|M_2|+|M_3|+ +|M_ 50 | equal to?

NDA 2026 Mathematics question

If where is a natural number, then what is equal to?

Answer: (C)

. So the sum is $(2k-1)

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Question ID VK-030271