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Matrices and Determinants question

2020 · 5 Sep · Shift 2 · Q25
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  5. /2020 · 5 Sep · Shift 2 · Q25

Matrices and Determinants question

2020 · 5 Sep · Shift 2 · Q25

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
If the system of linear equations x + y + 3z = 0 x + 3y + k2z = 0 3x + y + 3z = 0 has a non-zero solution (x, y, z) for some k ∈\in∈ R, then x + (yz)\left( {{y \over z}} \right)(zy​) is equal to :
  1. A
    9
  2. B
    3
  3. C
    -9
  4. D
    -3
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