MHT CET 2026 Mathematics question
If is a matrix such that , where denotes the modulus function, then the element in the 2nd row and 3rd column of is...
Answer: (D)
Solution
Compute : row 1: ; row 2: ; row 3: . So . . The (2,3) element of equals (cofactor of the element in row 3, column 2).
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