simionriley8586 simionriley8586
  • 08-03-2024
  • Mathematics
contestada

Find all values of x for which rank(A) = 2. A = [-1 2 0 7; -2 7 x 23; 1 1 -2 2]. Solution: Row reduce A to get: [-1 2 0 7; 0 3 x 9]

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