In a skew-symmetric matrix, all principal diagonal elements are:
In a skew-symmetric matrix, all principal diagonal elements are:
- A. 1
- B. Negative
- C. 0
- D. Positive
Answer: C) 0
Explanation: For a skew-symmetric matrix, a(i,i) = −a(i,i), which means 2a(i,i) = 0, so a(i,i) = 0 for all i.
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