Question: 2. Solve for y using Cramer's rule. Any other method of solving will not be awarded any marks: [3 marks] 4x+3y-z=1 3x+y-5z=9 x-2y-z=-7 Find det(-4A)

  1. 2. Solve for y using Cramer's rule. Any other method of solving will not be awarded any marks: [3 marks] 4x+3y-z=1 3x+y-5z=9 x-2y-z=-7
  2. Find det(-4A) if A is a 3 x 3 matrix and determinant of A is det(A) = 6. [2 marks]

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