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| 1. |
The system of equations `alphax+y+z=alpha-1, x+alphay+z=alpha-1, x+y+alphaz=alpha-1` has no solution if alpha is (A) 1 (B) not -2 (C) either -2 or 1 (D) -2A. Not - 2B. 1C. `-2`D. Either - 2 or 1 |
| Answer» Correct Answer - C | |