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Which of the following is an identity matrix? (2019)

Practice Questions

1 question
Q1
Which of the following is an identity matrix? (2019)
  1. [[1, 0], [0, 1]]
  2. [[1, 1], [1, 1]]
  3. [[0, 1], [1, 0]]
  4. [[2, 0], [0, 2]]

Questions & Step-by-step Solutions

1 item
Q
Q: Which of the following is an identity matrix? (2019)
Solution: An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.
Steps: 0

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