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Matrices and Determinants question

2018 · 16 Apr · Shift 1 · Q25
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Matrices and Determinants question

2018 · 16 Apr · Shift 1 · Q25

JEE MainMathematicsMatrices and DeterminantsMCQ+4 / −1
Let A = [100110111]\left[ {\begin{matrix} 1 & 0 & 0 \\ 1 & 1 & 0 \\ 1 & 1 & 1 \\ \end{matrix} } \right]​111​011​001​​ and B = A20. Then the sum of the elements of the first column of B is :
  1. A
    210
  2. B
    211
  3. C
    231
  4. D
    251
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