Let P = [ array lll 1 & 0 & 0 3 & 1 & 0 9 & 3 & 1 array ] and Q = [q ij ] be two 3 3…

Mathematics · JEE Main · NTA ExamsMatrices and Determinants

Let \(\mathbf{P}=\left[\begin{array}{lll} 1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & 1 \end{array}\right]\) and Q = [qij] be two \(3 \times 3\) matrices such that Q - P5 = I3. Then \(\frac{921+931}{932}\) is equal to:
  1. 15
  2. 9
  3. 135
  4. 10

Answer

(D) 10

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