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Sticky Note
Rank of a 3 × 3 identity matrix is?
  1. 1
  2. 2
  3. 3
  4. None of these
Explanation

The identity matrix has all diagonal elements as 1 and is full rank.

All its rows/columns are linearly independent.

Therefore, a 3 × 3 identity matrix has rank 3.


Last verified on 17-06-2026

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