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Matrices and Determinants question

2011 · Shift 2 · Q35
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  5. /2011 · Shift 2 · Q35

Matrices and Determinants question

2011 · Shift 2 · Q35

JEE AdvancedMathematicsMatrices and DeterminantsMCQ+3 / −1
Let ωe\omega eωe 1 be a cube root of unity and S be the set of all non-singular matrices of the form [1abω1cω2ω1]\left[ {\begin{matrix} 1 & a & b \\ \omega & 1 & c \\ {{\omega ^2}} & \omega & 1 \\ \end{matrix} } \right]​1ωω2​a1ω​bc1​​, where each of a, b, and c is either ω\omegaω or ω\omegaω 2. Then the number of distinct matrices in the set S is
  1. A
    2
  2. B
    6
  3. C
    4
  4. D
    8
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