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CUET UG Math 19 Jun 2023 Paper

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Question : 33

Total: 50

Which one of the following options is incorrect?
For a square matrix A in the matrix equation AX = B.

If |A| ≠ 0, then there exists a unique solution
If |A| = 0 and (adj A)B ≠ 0 then there is no solution
If |A| ≠ 0 and (adj A)B ≠ 0 then there is no solution
If |A| = 0 and (adj A)B = 0 then system has infinitely many solutions

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