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+1 vote
3.0k views
in Trigonometry by (41.5k points)

Trace of a skew-symmetric matrix is always equal to

(A) ∑aij

(B) ∑aii

(C) Zero

(D) None of these 

1 Answer

+1 vote
by (41.3k points)
selected by
 
Best answer

Answer is (C) Zero

Trace of a skew-symmetric matrix is always equal to zero. Now

A = - A′ ⇒ ∑aii = 0

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