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What is the trace of a 2x2 matrix A = [[a, b], [c, d]]? (2022)

Practice Questions

1 question
Q1
What is the trace of a 2x2 matrix A = [[a, b], [c, d]]? (2022)
  1. a + b + c + d
  2. a + d
  3. b + c
  4. a * d

Questions & Step-by-step Solutions

1 item
Q
Q: What is the trace of a 2x2 matrix A = [[a, b], [c, d]]? (2022)
Solution: The trace of a matrix is the sum of its diagonal elements. For matrix A, the trace is a + d.
Steps: 0

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