Find the value of such that the matrix is singular.

Answer and explanation

Correct answer: A. 4

  1. Step 1: A matrix is singular if its determinant equals zero.
  2. Step 2: Calculate determinant: .
  3. Step 3: Solve for : .
Answer
4.
Why not the others: '2' gives determinant ; '3' gives determinant ; '6' gives determinant .

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