Question:medium

If \( P \) is a non-singular matrix of order \( 5 \times 5 \) and the sum of the elements of each row is 1, then the sum of the elements of each row in \( P^{-1} \) is:

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Consider the action of the matrix on a vector of ones to represent row sums.
Updated On: Nov 28, 2025
  • \( 0 \)
  • \( 1 \)
  • \( \frac{1}{5} \)
  • \( 5 \)